Ruby Under a Microscope - Pat Shaughnessy

"Ruby Under a Microscope" ebook from @pat_shaughnessy, highly recommended to improve your Rails understanding!

Many people have dug into the Ruby source code but few make it back out and tell the tale as elegantly as Pat does in Ruby Under A Microscope! I particularly love the diagrams - and there are lots of them - as they make many opaque implementation topics a lot easier to understand, especially when coupled with Pat's gentle narrative. This book is a delight for language implementation geeks and Rubyists with a penchant for digging into the guts of their tools. – Peter Cooper (@peterc ) — Editor of Ruby Inside and Ruby Weekly

Full article: http://patshaughnessy.net/ruby-under-a-microscope