diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+
+# Created by https://www.gitignore.io/api/node,windows,linux,macos
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
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+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
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+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
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+# Runtime data
+pids
+*.pid
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+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
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+# Coverage directory used by tools like istanbul
+coverage
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+# nyc test coverage
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+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
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+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+
+# End of https://www.gitignore.io/api/node,windows,linux,macos
diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+MIT License
+
+Copyright (c) 2018 Atomix Interactions
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+# Readme
+
+## Optice
+
+Like redux, but `no reducers`, `no actions`
+
+### Usage
+
+```bash
+npm install optice
+```
+
+```js
+import { L, createStore } from 'optice'
+
+const initialState = {
+  user: {
+    name: '',
+    email: '',
+  },
+  company: {
+    name: '',
+    okato: 0,
+  }
+}
+
+const store = createStore(initialState)
+
+const userLens = L.prop('user')
+const companyLens = L.prop('company')
+
+const nameLens = L.prop('name')
+const emailLens = L.create(
+  (state) => state.email,
+  (email) => (state) => ({ ...state, email }),
+)
+// same as `L.prop('email')`
+
+const userNameLens = L.compose(userLens, nameLens)
+const companyNameLens = L.compose(companyLens, nameLens)
+
+const fetchUser = async () => ({ name: 'Foo Bar', email: 'foo.bar@company.com' })
+
+const loadUser = () => async ({ updateState }) => {
+  updateState(userLens, await fetchUser())
+}
+```
+
+In console should be this output:
+
+```
+BEFORE { name: '', email: '' } { name: '', okato: 0 }
+UPDATE { name: 'Foo Bar', email: 'foo.bar@company.com' } { name: '', okato: 0 }
+UPDATE { name: 'Foo Bar', email: 'foo.bar@company.com' } { name: 'Company', okato: 0 }
+```
+
+
+### API
+
+#### `createStore`
+
+```
+createStore(initialState): Store
+```
+Create new store object.
+
+
+#### `Store.execute`
+
+```
+store.execute(command): result
+```
+
+Run command function with store methods `({ getState, setState, updateState, readState, execute })`.
+Immediatly return result of command.
+
+```js
+const command = ({ getState, setState, updateState, readState, execute }) => {
+  // read, update state
+  // or execute another command
+  return 1
+}
+
+store.execute(command) === 1
+```
+
+#### `Store.getState`
+
+```
+store.getState(): State
+```
+
+Just return current state
+
+#### `Store.readState`
+
+```
+store.readState(lens: Lens): Value
+```
+
+Read value from state through lens.
+
+```js
+const lens = L.prop('data')
+
+const initialState = {
+  data: 1
+}
+
+const store = createStore(initialState)
+const value = store.readState(lens)
+
+console.assert(value === 1)
+```
+
+
+#### `Store.setState`
+
+```
+store.setState(newState: State): void
+```
+
+*It notify all subscribers*. Replace state, returns nothing.
+
+```js
+
+const initial = { a: 1, b: 2 }
+
+const store = createStore(initial)
+
+store.subscribe(state => {
+  console.log('updated')
+  console.assert(state.a === 5)
+})
+store.setState({ a: 5, b: 10 })
+```
+
+#### `Store.subscribe`
+
+```
+store.subscribe(listener: Function): Function
+```
+
+Add listener to subscribers list, returns `unsubscribe` function.
+
+
+```js
+const store = createStore({ a: 1 })
+
+const unsubscribe = store.subscribe(state => {
+  console.log('update', state)
+})
+
+store.setState({ a: 2 }) // > update { a: 2 }
+
+unsubscribe()
+store.setState({ a: 3 }) // nothing
+```
+
+#### `Store.updateState`
+
+```
+store.updateState(lens: Lens, valueOrFunc: any | Function): void
+```
+
+*It notify all subscribers*. Update piece of state through lens.
+If function passed update state with `L.over`, else use `L.write` to just set value.
+
+```js
+const lens = L.prop('a')
+
+const store = createStore({ a: 1 })
+
+store.updateState(lens, 2)
+console.assert(store.getState().a === 2)
+
+store.updateState(lens, value => value + 1)
+console.assert(store.getState().a === 3)
+```
+
+#### `L.create`
+
+```
+L.create(getter: Function, setter: Function): Lens
+```
+
+Create new lens.
+
+Getter is just function that received state. Should return piece of state.
+
+Setter is function that received passed value, return function that received state. Should return new version of passed state.
+
+Getter and Setter should be pure functions.
+
+```js
+const lens = L.create(
+  state => state.value,
+  value => state => ({ ...state, value }),
+)
+```
+
+#### `L.view`
+
+```
+L.view(state: State, lens: Lens): any
+```
+
+Read value from state through lens.
+
+```js
+const lens = L.create(
+  state => state.value,
+  value => state => ({ ...state, value }),
+)
+
+const state = { value: 'foo' }
+const value = view(state, lens)
+
+console.assert(value === 'foo')
+```
+
+#### `L.write`
+
+```
+L.write(state: State, lens: Lens, value: any): State
+```
+
+Immutable update piece of state through lens. Return new version of state.
+
+```js
+const state = { foo: { bar: 1 } }
+
+const fooLens = L.prop('foo')
+const barLens = L.prop('bar')
+const fooBarLens = L.compose(fooLens, barLens)
+
+const newState = L.write(state, fooBarLens, 2)
+console.assert(newState.foo.bar === 2)
+```
+
+#### `L.over`
+
+```
+L.over(state: State, lens: Lens, fn: (value) => value): State
+```
+
+Like `L.write` but use function to update value. Return new version of state.
+
+
+```js
+const state = { foo: 100 }
+
+const fooLens = L.prop('foo')
+const updater = (value) => value + value
+
+const newState = L.over(state, fooLens, updater)
+console.assert(L.read(state, fooLens) === 200)
+```
+
+
+#### `L.compose`
+
+```
+L.compose(...lenses: Lens[]): Lens
+```
+
+> L.compose can be used only for this lenses
+
+Perform lens composition. Returns one lens.
+
+If passed no lens, returns empty lens `L.create(s => s, v => s => s)`.
+
+If passed one lens, returns its.
+
+```js
+const a = L.create(
+  state => state.a,
+  value => state => ({ ...state, a: value })
+)
+
+const b = L.create(
+  state => state.b,
+  value => state => ({ ...state, b: value })
+)
+
+const ab = L.compose(a, b)
+
+// same as
+
+const ab2 = L.create(
+  state => state.a.b,
+  value => state => ({ ...state, a: { ...state.a, b: value } }),
+)
+```
+
+#### `L.prop`
+
+```
+L.prop(name: string): Lens
+```
+
+Makes lens to read/write property.
+
+```js
+const fooLens = L.prop('foo')
+// Same as
+const fooLens2 = L.create(
+  state => state.foo,
+  value => state => ({ ...state, value: foo })
+)
+```
diff --git a/index.js b/index.js
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+++ b/index.js
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+
+
+const create = (getter, setter) => ({ getter, setter })
+
+const view = (state, lens) => lens.getter(state)
+const write = (state, lens, data) => lens.setter(data)(state)
+const over = (state, lens, fn) => L.write(state, lens, fn(L.view(state, lens)))
+
+const compose = (...lenses) => {
+  const len = lenses.length;
+
+  if (len === 0) {
+    return L.create(s => s, v => s => s)
+  }
+
+  if (len === 1) {
+    return lenses[0]
+  }
+
+  return L.create(
+    (state) => lenses.reduce((current, lens) => L.view(current, lens), state),
+    (value) => function traverse(state, index = 0) {
+      const lens = lenses[index]
+      return index === len
+        ? value
+        : lens.setter(traverse(lens.getter(state), index + 1))(state)
+    }
+  )
+}
+
+const prop = (name) => L.create(
+  (state) => state[name],
+  (value) => (state) => ({ ...state, [name]: value }),
+)
+
+const L = {
+  create,
+  view,
+  write,
+  over,
+  compose,
+  prop,
+}
+
+const createStore = (initialState) => {
+  let lastState = initialState
+  const listeners = []
+
+  const subscribe = (fn) => {
+    let isSubscribed = true
+    listeners.push(fn)
+
+    return function unsubscribe() {
+      if (isSubscribed) {
+        const index = listeners.indexOf(fn)
+        listeners.splice(index, 1)
+        isSubscribed = false
+      }
+    }
+  }
+
+  const update = () => {
+    for (const listener of listeners) {
+      listener(lastState)
+    }
+  }
+
+  const getState = () => lastState
+
+  const setState = (newState) => {
+    lastState = newState
+    update()
+  }
+
+  const updateState = (lens, dataOrFn) => {
+    typeof dataOrFn === 'function'
+      ? setState(L.over(getState(), lens, dataOrFn))
+      : setState(L.write(getState(), lens, dataOrFn))
+  }
+
+  const readState = (lens) =>
+    L.view(getState(), lens)
+
+  const execute = (command) => command({ getState, setState, updateState, readState, execute })
+
+  return {
+    execute,
+    getState,
+    readState,
+    setState,
+    subscribe,
+    updateState,
+  }
+}
+
+module.exports = {
+  L,
+  createStore,
+}
diff --git a/package.json b/package.json
new file mode 100644
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--- /dev/null
+++ b/package.json
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+{
+  "name": "optice",
+  "version": "0.1.0",
+  "description": "Select and update your store with lenses",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/atomixinteractions/optice.git"
+  },
+  "keywords": [
+    "store",
+    "redux",
+    "react",
+    "lens",
+    "ramda",
+    "function",
+    "traverse",
+    "reduce",
+    "update",
+    "state",
+    "compose",
+    "prop",
+    "initial",
+    "set",
+    "read"
+  ],
+  "contributors": [
+    "Sergey Sova <mail@sergeysova.com> (https://sergeysova.com/)",
+    "Viacheslav Bereza <mail@betula.co> (http://betula.co/)"
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/atomixinteractions/optice/issues"
+  },
+  "homepage": "https://github.com/atomixinteractions/optice#readme"
+}