diff --git a/package.json b/package.json
index d48b98e..83556ed 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,6 @@
     "@types/node": "^12.0.0",
     "@types/react": "^16.9.0",
     "@types/react-dom": "^16.9.0",
-    "formik": "^2.1.4",
     "moment": "^2.26.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
diff --git a/src/App.tsx b/src/App.tsx
index f6ed80e..1ec6596 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,14 +1,21 @@
 import React from 'react';
-import { Container } from "@material-ui/core";
+import { Container, ThemeProvider, Typography } from "@material-ui/core";
 import { CompanyForm } from "./forms/company";
+import { studentTheme } from "./ui/theme";
 
 function App() {
   return (
-    <div className="app">
-        <Container>
-            <CompanyForm />
-        </Container>
-    </div>
+      <ThemeProvider theme={ studentTheme }>
+          <div className="app">
+              <Container maxWidth={"md"}>
+                  <Typography variant="h3">Zgłoszenie Praktyki</Typography>
+                  <Typography variant="subtitle1" style={{ marginBottom: '100px' }}>UX Demo</Typography>
+
+                  <Typography variant="h5">Miejsce odbywania praktyki</Typography>
+                  <CompanyForm />
+              </Container>
+          </div>
+      </ThemeProvider>
   );
 }
 
diff --git a/src/data/common.ts b/src/data/common.ts
new file mode 100644
index 0000000..62671b8
--- /dev/null
+++ b/src/data/common.ts
@@ -0,0 +1,3 @@
+export interface Identifiable {
+    id?: string
+}
diff --git a/src/data/company.ts b/src/data/company.ts
index c73333d..5e6f2db 100644
--- a/src/data/company.ts
+++ b/src/data/company.ts
@@ -1,3 +1,5 @@
+import { Identifiable } from "./common";
+
 export interface Address {
     street: string;
     building: string;
@@ -6,14 +8,14 @@ export interface Address {
     country: string;
 }
 
-export interface Company {
+export interface Company extends Identifiable {
     name: string;
     url?: string;
     nip: string;
     offices: BranchOffice[];
 }
 
-export interface BranchOffice {
+export interface BranchOffice extends Identifiable {
     address: Address;
 }
 
@@ -24,4 +26,16 @@ export const emptyCompany: Company = {
     nip: "",
 }
 
+export const emptyAddress: Address = {
+    street: "",
+    city: "",
+    country: "",
+    postalCode: "",
+    building: ""
+}
+
+export const emptyBranchOffice: BranchOffice = {
+    address: emptyAddress,
+}
+
 export const formatAddress = ({ postalCode, building, street, city, country }: Address): string => `${street} ${building}, ${postalCode} ${city}, ${country}`
diff --git a/src/forms/company.tsx b/src/forms/company.tsx
index 4ff47bf..78729e1 100644
--- a/src/forms/company.tsx
+++ b/src/forms/company.tsx
@@ -1,69 +1,139 @@
-import React, { HTMLProps, useState } from "react";
-import { useFormik } from "formik";
-import { Nullable } from "../helpers";
-import { formatAddress, Company, emptyCompany, BranchOffice } from "../data/company";
+import React, { HTMLProps, useEffect, useMemo, useState } from "react";
+import { BranchOffice, Company, emptyAddress, emptyBranchOffice, emptyCompany, formatAddress } from "../data/company";
 import { sampleCompanies } from "../provider/company";
 import { Autocomplete } from "@material-ui/lab";
-import { Box, Grid, TextField, Typography } from "@material-ui/core";
+import { Grid, TextField, Typography } from "@material-ui/core";
+import { formFieldProps } from "./helpers";
 
-export type CompanyFormProps = {
+export type CompanyFormProps = {}
 
+export type BranchOfficeProps = {
+    company: Company,
+    disabled?: boolean
 }
 
 export const CompanyItem = ({ company, ...props }: { company: Company } & HTMLProps<any>) => (
-    <div className="company-item" {...props}>
+    <div className="company-item" { ...props }>
         <div>{ company.name }</div>
         <Typography variant="caption">NIP: <strong>{ company.nip }</strong></Typography>
     </div>
 )
 
 export const OfficeItem = ({ office, ...props }: { office: BranchOffice } & HTMLProps<any>) => (
-    <div className="office-item" {...props}>
-        <div>{ office.address.city }, { office.address.street }</div>
+    <div className="office-item" { ...props }>
+        <div>{ office.address.city }</div>
         <Typography variant="caption">{ formatAddress(office.address) }</Typography>
     </div>
 )
 
-export const CompanyForm: React.FunctionComponent<CompanyFormProps> = props => {
-    const formik = useFormik<Nullable<Company>>({ onSubmit: values => console.log(values), initialValues: emptyCompany });
+export const BranchForm: React.FC<BranchOfficeProps> = ({ company, disabled = false }) => {
+    const [office, setOffice] = useState<BranchOffice>(emptyBranchOffice)
 
-    const formikProps = (prop: keyof Company) => ({ onChange: formik.handleChange, value: formik.values[prop], name: prop })
+    const canEdit = useMemo(() => !office.id && !disabled, [office.id, disabled]);
 
-    const [company, setCompany] = useState<Company | null>(null);
+    const fieldProps = formFieldProps(office.address, address => setOffice({ ...office, address }))
+
+    const handleCityChange = (event: any, value: BranchOffice | string | null) => {
+        if (typeof value === "string") {
+            setOffice({
+                ...emptyBranchOffice,
+                address: {
+                    ...emptyAddress,
+                    city: value,
+                }
+            });
+        } else if (typeof value === "object" && value !== null) {
+            setOffice(value);
+        } else {
+            setOffice(emptyBranchOffice);
+        }
+    }
+
+    const handleCityInput = (event: any, value: string) => {
+        const base = office.id ? emptyBranchOffice : office;
+        setOffice({
+            ...base,
+            address: {
+                ...base.address,
+                city: value,
+            }
+        })
+    }
+
+    useEffect(() => void (office.id && setOffice(emptyBranchOffice)), [company])
 
     return (
-        <Grid container spacing={3}>
-            <Grid item xs={12}>
-                <Autocomplete options={ sampleCompanies }
-                              getOptionLabel={ option => option.name }
-                              renderOption={ company => <CompanyItem company={company} /> }
-                              renderInput={ props => <TextField {...props} label={"Nazwa firmy"} fullWidth />}
-                              onChange={ (ev, value: Company | null) => {
-                                  setCompany(value)
-
-                                  formik.setFieldValue("name", value?.name || "")
-                                  formik.setFieldValue("url", value?.url || "");
-                                  formik.setFieldValue("nip", value?.nip || "");
-                              } }
-                />
-            </Grid>
-            <Grid container item spacing={2} xs={12}>
-                <Grid item xs={4}>
-                    <TextField label={"NIP"} fullWidth {...formikProps("nip")} disabled={ company != null}/>
-                </Grid>
-                <Grid item xs={8}>
-                    <TextField label={"Url"} fullWidth {...formikProps("url")} disabled={ company != null }/>
-                </Grid>
-            </Grid>
-            <Grid item xs={12}>
+        <Grid container>
+            <Grid item md={ 7 }>
                 <Autocomplete options={ company?.offices || [] }
-                              disabled={ company == null}
-                              getOptionLabel={ office => office.address.city }
-                              renderOption={ office => <OfficeItem office={ office } /> }
-                              renderInput={ props => <TextField {...props} label={"Oddział"} fullWidth />}
+                              disabled={ disabled }
+                              getOptionLabel={ office => typeof office == "string" ? office : office.address.city }
+                              renderOption={ office => <OfficeItem office={ office }/> }
+                              renderInput={ props => <TextField { ...props } label={ "Miasto" } fullWidth/> }
+                              onChange={ handleCityChange }
+                              onInputChange={ handleCityInput }
+                              inputValue={ office.address.city }
+                              value={ office.id ? office : null }
+                              freeSolo
                 />
             </Grid>
+            <Grid item md={ 2 }>
+                <TextField label={ "Kod pocztowy" } fullWidth disabled={ !canEdit } { ...fieldProps("postalCode") }/>
+            </Grid>
+            <Grid item md={ 3 }>
+                <TextField label={ "Kraj" } fullWidth disabled={ !canEdit } { ...fieldProps("country") }/>
+            </Grid>
+            <Grid item md={ 10 }>
+                <TextField label={ "Ulica" } fullWidth disabled={ !canEdit } { ...fieldProps("street") }/>
+            </Grid>
+            <Grid item md={ 2 }>
+                <TextField label={ "Nr Budynku" } fullWidth disabled={ !canEdit } { ...fieldProps("building") }/>
+            </Grid>
         </Grid>
     )
 }
 
+export const CompanyForm: React.FunctionComponent<CompanyFormProps> = props => {
+    const [company, setCompany] = useState<Company>(emptyCompany);
+    const canEdit = useMemo(() => !company.id, [company.id]);
+
+    const fieldProps = formFieldProps(company, setCompany)
+
+    const handleCompanyChange = (event: any, value: Company | string | null) => {
+        if (typeof value === "string") {
+            setCompany({
+                ...emptyCompany,
+                name: value,
+            });
+        } else if (typeof value === "object" && value !== null) {
+            setCompany(value);
+        } else {
+            setCompany(emptyCompany);
+        }
+    }
+
+    return (
+        <>
+            <Grid container style={ { marginBottom: 0, marginTop: 0 } }>
+                <Grid item>
+                    <Autocomplete options={ sampleCompanies }
+                                  getOptionLabel={ option => option.name }
+                                  renderOption={ company => <CompanyItem company={ company }/> }
+                                  renderInput={ props => <TextField { ...props } label={ "Nazwa firmy" } fullWidth/> }
+                                  onChange={ handleCompanyChange }
+                                  freeSolo
+                    />
+                </Grid>
+                <Grid item md={ 4 }>
+                    <TextField label={ "NIP" } fullWidth { ...fieldProps("nip") } disabled={ !canEdit }/>
+                </Grid>
+                <Grid item md={ 8 }>
+                    <TextField label={ "Url" } fullWidth { ...fieldProps("url") } disabled={ !canEdit }/>
+                </Grid>
+            </Grid>
+            <Typography variant="subtitle1">Oddział</Typography>
+            <BranchForm company={ company }/>
+        </>
+    )
+}
+
diff --git a/src/forms/helpers.ts b/src/forms/helpers.ts
new file mode 100644
index 0000000..4fafb88
--- /dev/null
+++ b/src/forms/helpers.ts
@@ -0,0 +1,20 @@
+import { DOMEvent } from "../helpers";
+
+type UpdatingEvent = "onBlur" | "onChange" | "onInput";
+type FormFieldHelperOptions<T> = {
+    event: UpdatingEvent
+}
+
+export function formFieldProps<T>(subject: T, update: (value: T) => void, options: Partial<FormFieldHelperOptions<T>> = {}) {
+    const {
+        event = "onChange"
+    } = options;
+
+    return (field: keyof T) => ({
+        value: subject[field],
+        [event]: (event: DOMEvent<HTMLInputElement>) => update({
+            ...subject,
+            [field]: event.target.value,
+        } as T)
+    })
+}
diff --git a/src/helpers.ts b/src/helpers.ts
index 157ce58..e128e6c 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -1 +1,5 @@
 export type Nullable<T> = { [P in keyof T]: T[P] | null }
+
+export interface DOMEvent<TTarget extends EventTarget> extends Event {
+    target: TTarget;
+}
diff --git a/src/provider/company.ts b/src/provider/company.ts
index e0379f0..be861f9 100644
--- a/src/provider/company.ts
+++ b/src/provider/company.ts
@@ -1,11 +1,17 @@
 import { Company } from "../data/company";
+import { makeIdSequence } from "./helpers";
+
+const companySequence = makeIdSequence();
+const officeSequence = makeIdSequence();
 
 export const sampleCompanies: Company[] = [
     {
+        id: companySequence(),
         name: "Intel",
         url: "https://www.intel.com/content/www/us/en/jobs/locations/poland.html",
         nip: "9570752316",
         offices: [{
+            id: officeSequence(),
             address: {
                 city: "Gdańsk",
                 street: "ul. Słowackiego",
@@ -16,10 +22,12 @@ export const sampleCompanies: Company[] = [
         }]
     },
     {
+        id: companySequence(),
         name: "IHS Markit",
         url: "http://ihsgdansk.com/",
         nip: "5842068320",
         offices: [{
+            id: officeSequence(),
             address: {
                 city: "Gdańsk",
                 street: "ul. Marynarki Polskiej",
@@ -30,10 +38,12 @@ export const sampleCompanies: Company[] = [
         }]
     },
     {
+        id: companySequence(),
         name: "Asseco Poland",
         url: "http://pl.asseco.com/",
         nip: "5842068320",
         offices: [{
+            id: officeSequence(),
             address: {
                 city: "Gdynia",
                 street: "ul. Podolska",
@@ -42,6 +52,7 @@ export const sampleCompanies: Company[] = [
                 country: "Poland"
             }
         }, {
+            id: officeSequence(),
             address: {
                 city: "Łódź",
                 street: "al. Marszałka Józefa Piłsudskiego",
@@ -50,6 +61,7 @@ export const sampleCompanies: Company[] = [
                 country: "Poland"
             }
         }, {
+            id: officeSequence(),
             address: {
                 city: "Wrocław",
                 street: "Traugutta",
diff --git a/src/provider/helpers.ts b/src/provider/helpers.ts
new file mode 100644
index 0000000..20b4496
--- /dev/null
+++ b/src/provider/helpers.ts
@@ -0,0 +1,4 @@
+export const makeIdSequence = (start: number = 1) => {
+    let i = start;
+    return () => i++;
+}
diff --git a/src/ui/theme.ts b/src/ui/theme.ts
new file mode 100644
index 0000000..05e110a
--- /dev/null
+++ b/src/ui/theme.ts
@@ -0,0 +1,10 @@
+import { createMuiTheme } from "@material-ui/core";
+
+export const studentTheme = createMuiTheme({
+    props: {
+        MuiGrid: {
+            spacing: 4,
+            xs: 12,
+        }
+    }
+})
diff --git a/yarn.lock b/yarn.lock
index b908545..1489c71 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3672,11 +3672,6 @@ deep-is@~0.1.3:
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
 
-deepmerge@^2.1.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-2.2.1.tgz#5d3ff22a01c00f645405a2fbc17d0778a1801170"
-  integrity sha512-R9hc1Xa/NOBi9WRVUWg19rl1UB7Tt4kuPd+thNJgFZoxXsTz7ncaPaeIm+40oSGuP33DfMb4sZt1QIGiJzC4EA==
-
 default-gateway@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/default-gateway/-/default-gateway-4.2.0.tgz#167104c7500c2115f6dd69b0a536bb8ed720552b"
@@ -4751,20 +4746,6 @@ form-data@~2.3.2:
     combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
-formik@^2.1.4:
-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/formik/-/formik-2.1.4.tgz#8deef07ec845ea98f75e03da4aad7aab4ac46570"
-  integrity sha512-oKz8S+yQBzuQVSEoxkqqJrKQS5XJASWGVn6mrs+oTWrBoHgByVwwI1qHiVc9GKDpZBU9vAxXYAKz2BvujlwunA==
-  dependencies:
-    deepmerge "^2.1.1"
-    hoist-non-react-statics "^3.3.0"
-    lodash "^4.17.14"
-    lodash-es "^4.17.14"
-    react-fast-compare "^2.0.1"
-    scheduler "^0.18.0"
-    tiny-warning "^1.0.2"
-    tslib "^1.10.0"
-
 forwarded@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
@@ -5121,7 +5102,7 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoist-non-react-statics@^3.3.0, hoist-non-react-statics@^3.3.2:
+hoist-non-react-statics@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz#ece0acaf71d62c2969c2ec59feff42a4b1a85b45"
   integrity sha512-/gGivxi8JPKWNm/W0jSmzcMPpfpPLc3dY/6GxhX2hQ9iGj3aDfklV4ET7NjKpSinLpJ5vafa9iiGIEZg10SfBw==
@@ -6694,11 +6675,6 @@ locate-path@^5.0.0:
   dependencies:
     p-locate "^4.1.0"
 
-lodash-es@^4.17.14:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash-es/-/lodash-es-4.17.15.tgz#21bd96839354412f23d7a10340e5eac6ee455d78"
-  integrity sha512-rlrc3yU3+JNOpZ9zj5pQtxnx2THmvRykwL4Xlxoa8I9lHBlVbbyPhgyPMioxVZ4NqyxaVVtaJnzsyOidQIhyyQ==
-
 lodash._reinterpolate@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
@@ -8832,11 +8808,6 @@ react-error-overlay@^6.0.7:
   resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-6.0.7.tgz#1dcfb459ab671d53f660a991513cb2f0a0553108"
   integrity sha512-TAv1KJFh3RhqxNvhzxj6LeT5NWklP6rDr2a0jaTfsZ5wSZWHOGeqQyejUp3xxLfPt2UpyJEcVQB/zyPcmonNFA==
 
-react-fast-compare@^2.0.1:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/react-fast-compare/-/react-fast-compare-2.0.4.tgz#e84b4d455b0fec113e0402c329352715196f81f9"
-  integrity sha512-suNP+J1VU1MWFKcyt7RtjiSWUjvidmQSlqu+eHslq+342xCbGTYmC0mEhPCOHxlW0CywylOC1u2DFAT+bv4dBw==
-
 react-is@^16.12.0, react-is@^16.7.0, react-is@^16.8.0, react-is@^16.8.1, react-is@^16.8.4:
   version "16.13.1"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
@@ -9404,14 +9375,6 @@ saxes@^3.1.9:
   dependencies:
     xmlchars "^2.1.1"
 
-scheduler@^0.18.0:
-  version "0.18.0"
-  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.18.0.tgz#5901ad6659bc1d8f3fdaf36eb7a67b0d6746b1c4"
-  integrity sha512-agTSHR1Nbfi6ulI0kYNK0203joW2Y5W4po4l+v03tOoiJKpTBbxpNhWDvqc/4IcOw+KLmSiQLTasZ4cab2/UWQ==
-  dependencies:
-    loose-envify "^1.1.0"
-    object-assign "^4.1.1"
-
 scheduler@^0.19.1:
   version "0.19.1"
   resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.19.1.tgz#4f3e2ed2c1a7d65681f4c854fa8c5a1ccb40f196"