diff --git a/README.md b/README.md
index 173ab24..e5986b8 100644
--- a/README.md
+++ b/README.md
@@ -826,6 +826,29 @@ export default Counter;
 
 [⇧ back to top](#table-of-contents)
 
+#### - useContext
+
+> https://reactjs.org/docs/hooks-reference.html#usecontext
+
+```tsx
+import * as React from 'react';
+import ThemeContext from '../context/theme-context';
+
+type Props = {};
+
+export default function ThemeToggleButton(props: Props) {
+  const { theme, toggleTheme } = React.useContext(ThemeContext);
+  return (
+    <button onClick={toggleTheme} style={theme} >
+      Toggle Theme
+    </button>
+  );
+}
+
+```
+
+[⇧ back to top](#table-of-contents)
+
 ---
 
 # Redux
diff --git a/README_SOURCE.md b/README_SOURCE.md
index fa2a059..47476fe 100644
--- a/README_SOURCE.md
+++ b/README_SOURCE.md
@@ -320,6 +320,14 @@ Hook for state management like Redux in a function component.
 
 [⇧ back to top](#table-of-contents)
 
+#### - useContext
+
+> https://reactjs.org/docs/hooks-reference.html#usecontext
+
+::codeblock='playground/src/hooks/use-theme-context.tsx'::
+
+[⇧ back to top](#table-of-contents)
+
 ---
 
 # Redux
diff --git a/playground/src/context/theme-consumer.tsx b/playground/src/context/theme-consumer.tsx
new file mode 100644
index 0000000..5ddd73d
--- /dev/null
+++ b/playground/src/context/theme-consumer.tsx
@@ -0,0 +1,12 @@
+import * as React from 'react';
+import ThemeContext from './theme-context';
+
+type Props = {};
+
+export default function ToggleThemeButton(props: Props) {
+  return (
+    <ThemeContext.Consumer>
+      {({ theme, toggleTheme }) => <button style={theme} onClick={toggleTheme} {...props} />}
+    </ThemeContext.Consumer>
+  );
+}
diff --git a/playground/src/context/theme-context.ts b/playground/src/context/theme-context.ts
new file mode 100644
index 0000000..18561b1
--- /dev/null
+++ b/playground/src/context/theme-context.ts
@@ -0,0 +1,24 @@
+import * as React from 'react';
+
+export type Theme = React.CSSProperties;
+
+type Themes = {
+  dark: Theme;
+  light: Theme;
+};
+
+export const themes: Themes = {
+  dark: {
+    color: 'black',
+    backgroundColor: 'white',
+  },
+  light: {
+    color: 'white',
+    backgroundColor: 'black',
+  },
+};
+
+export type ThemeContextProps = { theme: Theme; toggleTheme?: () => void };
+const ThemeContext = React.createContext<ThemeContextProps>({ theme: themes.light });
+
+export default ThemeContext;
diff --git a/playground/src/context/theme-provider.tsx b/playground/src/context/theme-provider.tsx
index a9ac26c..a4abb82 100644
--- a/playground/src/context/theme-provider.tsx
+++ b/playground/src/context/theme-provider.tsx
@@ -1,25 +1,11 @@
 import React from 'react';
+import ThemeContext, { themes, Theme } from './theme-context';
+import ToggleThemeButton from './theme-consumer';
 
-// Context
-const themes = {
-  dark: {
-    color: 'black',
-    backgroundColor: 'white',
-  } as React.CSSProperties,
-  light: {
-    color: 'white',
-    backgroundColor: 'black',
-  } as React.CSSProperties,
-};
-
-type Theme = { theme: React.CSSProperties; toggleTheme?: () => void };
-const ThemeContext = React.createContext<Theme>({ theme: themes.light });
-
-// Provider
 interface State {
-  theme: Theme['theme'];
+  theme: Theme;
 }
-export class App extends React.Component<{}, State> {
+export class ThemeProvider extends React.Component<{}, State> {
   readonly state: State = { theme: themes.light };
 
   toggleTheme = () => {
@@ -38,14 +24,3 @@ export class App extends React.Component<{}, State> {
     );
   }
 }
-
-// Consumer
-interface ThemedButtonProps {}
-
-function ToggleThemeButton(props: ThemedButtonProps) {
-  return (
-    <ThemeContext.Consumer>
-      {({ theme, toggleTheme }) => <button style={theme} onClick={toggleTheme} {...props} />}
-    </ThemeContext.Consumer>
-  );
-}
diff --git a/playground/src/hooks/use-theme-context.tsx b/playground/src/hooks/use-theme-context.tsx
new file mode 100644
index 0000000..d4fced9
--- /dev/null
+++ b/playground/src/hooks/use-theme-context.tsx
@@ -0,0 +1,13 @@
+import * as React from 'react';
+import ThemeContext from '../context/theme-context';
+
+type Props = {};
+
+export default function ThemeToggleButton(props: Props) {
+  const { theme, toggleTheme } = React.useContext(ThemeContext);
+  return (
+    <button onClick={toggleTheme} style={theme} >
+      Toggle Theme
+    </button>
+  );
+}