Perrotta Paolo. Metaprogramming Ruby: Program Like the Ruby Pros

The Pragmatic Programmers, LLC., 2010. — 296 p. — ISBN 978-1-93435-647-0.Metaprogramming Ruby
Monday: The Object Model
Tuesday: Methods excerpt
Wednesday: Blocks
Thursday: Class Definitions
Friday: Code That Writes Code
Epilogue
Metaprogramming in Rails
The Design of ActiveRecord
Inside ActiveRecord
Metaprogramming Safely
Appendices
Common Idioms
Domain Specific Languages
Spell Book excerpt