Reddit mentions of Metaprogramming Ruby 2: Program Like the Ruby Pros (Facets of Ruby)

A copy of Metaprogramming in Ruby http://www.amazon.com/gp/product/1941222129/

Metaprogramming Ruby was by far the best thing I read coming to Ruby from Python and other languages.

I'm reading a book: metaprogramming in ruby. Learning a lot about how ruby and rails works. Take a look.

http://www.amazon.ca/Metaprogramming-Ruby-Program-Like-Pros/dp/1941222129/ref=dp_ob_title_bk

Also ruby under a microscope: https://www.nostarch.com/rum

This is a very good book. Much more than just the Object Model.

Two books that helped me get to another level were:

• Metaprogramming Ruby
  
• The Complete Guide to Rails Performance
  
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Try Metaprogramming Ruby 2 -- tons of advanced technique with real-world examples from current gems. It will expand the way you think about Ruby and give you design ideas for your Rails projects: https://www.amazon.com/Metaprogramming-Ruby-Program-Like-Facets/dp/1941222129/ref=dp_ob_title_bk

FWIW, Paolo Perrotta's "Ruby Metaprogramming 2" has a nice explanation of it in an appendix:

http://www.amazon.com/Metaprogramming-Ruby-Program-Like-Facets/dp/1941222129