Here are some themes and topics from "Agile Web Development with Rails 4" that can help you connect it to other books in a library:
**Programming Languages:**
- **Ruby:** The book provides an introduction to Ruby. This makes it connectable to other books focusing on Ruby programming, its syntax, and its features 【1】.
- **Rails 3 and 4:** The book covers improvements and new APIs in Rails 3 and 4, as well as Ruby 1.9 and 2.0 【2】.
**Web Frameworks:**
- **Rails Architecture:** The book explains the architecture of Rails applications, which can be linked to other books on web application architecture and design patterns 【1】.
- **Rails Core Concepts:** It deals with forms, views, and controllers in Rails applications 【3】【4】.
- **Rails Features:** The book covers controller concerns, Russian Doll caching, strong parameters, and Turbolinks 【5】.
**Software Development Methodologies:**
- **Agile Development:** The book uses Agile methodologies, so it can be connected to books on Agile software development practices 【6】.
**Core Web Development Concepts:**
- **Background jobs and caching:** The book explores advanced Rails topics, including background jobs and caching 【7】.
