diff --git a/content/docs/nav.yml b/content/docs/nav.yml
index d35b7f015..08f156cf0 100644
--- a/content/docs/nav.yml
+++ b/content/docs/nav.yml
@@ -1,85 +1,85 @@
 - title: Installation
   items:
     - id: getting-started
-      title: Getting Started
+      title: Empezando
     - id: add-react-to-a-website
-      title: Add React to a Website
+      title: Agregar React a un sitio web
     - id: create-a-new-react-app
-      title: Create a New React App
+      title: Crear una nueva aplicación React
     - id: cdn-links
-      title: CDN Links
-- title: Main Concepts
+      title: Enlaces CDN
+- title: Conceptos principales
   isOrdered: true
   items:
     - id: hello-world
-      title: Hello World
+      title: Hola mundo
     - id: introducing-jsx
-      title: Introducing JSX
+      title: Presentando JSX
     - id: rendering-elements
-      title: Rendering Elements
+      title: Renderizando elementos
     - id: components-and-props
-      title: Components and Props
+      title: Componentes y propiedades
     - id: state-and-lifecycle
-      title: State and Lifecycle
+      title: Estado y ciclo de vida
     - id: handling-events
-      title: Handling Events
+      title: Manejando eventos
     - id: conditional-rendering
-      title: Conditional Rendering
+      title: Renderizado condicional
     - id: lists-and-keys
-      title: Lists and Keys
+      title: Listas y keys
     - id: forms
-      title: Forms
+      title: Formularios
     - id: lifting-state-up
-      title: Lifting State Up
+      title: Levantando el estado
     - id: composition-vs-inheritance
-      title: Composition vs Inheritance
+      title: Composición vs. herencia
     - id: thinking-in-react
-      title: Thinking In React
-- title: Advanced Guides
+      title: Pensando en React
+- title: Guías avanzadas
   items:
     - id: accessibility
-      title: Accessibility
+      title: Accesibilidad
     - id: code-splitting
-      title: Code-Splitting
+      title: División de código
     - id: context
-      title: Context
+      title: Contexto
     - id: error-boundaries
-      title: Error Boundaries
+      title: Límites de errores
     - id: forwarding-refs
-      title: Forwarding Refs
+      title: Reenvío de refs
     - id: fragments
-      title: Fragments
+      title: Fragmentos
     - id: higher-order-components
-      title: Higher-Order Components
+      title: Componentes de orden superior
     - id: integrating-with-other-libraries
-      title: Integrating with Other Libraries
+      title: Integración con otras bibliotecas
     - id: jsx-in-depth
-      title: JSX In Depth
+      title: JSX en profundidad
     - id: optimizing-performance
-      title: Optimizing Performance
+      title: Optimizando el rendimiento
     - id: portals
-      title: Portals
+      title: Portales
     - id: react-without-es6
-      title: React Without ES6
+      title: React sin ES6
     - id: react-without-jsx
-      title: React Without JSX
+      title: React sin JSX
     - id: reconciliation
-      title: Reconciliation
+      title: Reconciliación
     - id: refs-and-the-dom
-      title: Refs and the DOM
+      title: Referencias y el DOM
     - id: render-props
       title: Render Props
     - id: static-type-checking
-      title: Static Type Checking
+      title: Comprobación de tipos estáticos
     - id: strict-mode
-      title: Strict Mode
+      title: Modo estricto
     - id: typechecking-with-proptypes
-      title: Typechecking With PropTypes
+      title: Verificación de tipos con PropTypes
     - id: uncontrolled-components
-      title: Uncontrolled Components
+      title: Componentes no controlados
     - id: web-components
       title: Web Components
-- title: API Reference
+- title: Referencia de la API
   items:
     - id: react-api
       title: React
@@ -91,63 +91,63 @@
     - id: react-dom-server
       title: ReactDOMServer
     - id: dom-elements
-      title: DOM Elements
+      title: Elementos DOM
     - id: events
       title: SyntheticEvent
     - id: test-utils
-      title: Test Utilities
+      title: Utilidades para pruebas
     - id: shallow-renderer
-      title: Shallow Renderer
+      title: Renderizador superficial
     - id: test-renderer
-      title: Test Renderer
+      title: Renderizador de prueba
     - id: javascript-environment-requirements
-      title: JS Environment Requirements
+      title: Requerimientos del entorno de JS
     - id: glossary
-      title: Glossary
-- title: Hooks (New)
+      title: Glosario
+- title: Hooks (nuevo)
   isOrdered: true
   items:
       - id: hooks-intro
-        title: Introducing Hooks
+        title: Presentando a los Hooks
       - id: hooks-overview
-        title: Hooks at a Glance
+        title: Un vistazo a los Hooks
       - id: hooks-state
-        title: Using the State Hook
+        title: Usando el Hook de estado
       - id: hooks-effect
-        title: Using the Effect Hook
+        title: Usando el Hook de efecto
       - id: hooks-rules
-        title: Rules of Hooks
+        title: Reglas de los Hooks
       - id: hooks-custom
-        title: Building Your Own Hooks
+        title: Construyendo tus propios Hooks
       - id: hooks-reference
-        title: Hooks API Reference
+        title: Referencia de la API de los Hooks
       - id: hooks-faq
-        title: Hooks FAQ
-- title: Contributing
+        title: Preguntas frecuentes sobre Hooks
+- title: Contribuir
   items:
   - id: how-to-contribute
-    title: How to Contribute
+    title: Cómo contribuir
   - id: codebase-overview
-    title: Codebase Overview
+    title: Visión general de la base de código
   - id: implementation-notes
-    title: Implementation Notes
+    title: Notas de implementación
   - id: design-principles
-    title: Design Principles
-- title: FAQ
+    title: Principios de diseño
+- title: Preguntas frecuentes
   items:
     - id: faq-ajax
       title: AJAX y APIs
     - id: faq-build
-      title: Babel, JSX, and Build Steps
+      title: Babel, JSX y pasos para construir.
     - id: faq-functions
-      title: Passing Functions to Components
+      title: Pasando funciones a componentes
     - id: faq-state
-      title: Component State
+      title: Estado del componente
     - id: faq-styling
-      title: Styling and CSS
+      title: Estilo y CSS
     - id: faq-structure
-      title: File Structure
+      title: Estructura de archivos
     - id: faq-versioning
-      title: Versioning Policy
+      title: Política de versiones
     - id: faq-internals
-      title: Virtual DOM and Internals
+      title: DOM virtual y detalles de implementación