本文列出 10 个最适合 Ruby 初学者阅读的免费电子书，可惜是英文的。

1) Learn To Program

2) Programming Ruby

3) Ruby_Essentials

4) Ruby eBooks

5) Ruby Best Practices

6) Humble Little Ruby Book

7) Ruby In Twenty Minutes

This is a small Ruby tutorial that should take no more than 20 minutes to complete. It makes the assumption that you already have Ruby installed.

8 ) Ruby on Rails Tutorial Book 

9) Ruby- Bastards Book

10) Ruby Learning