books.google.ca - Ruby is a powerful programming language with a focus on simplicity, but beneath its elegant syntax it performs countless unseen tasks. Ruby Under a Microscope gives you a hands-on look at Ruby's core, using extensive diagrams and thorough explanations to show you how Ruby is implemented (no C skills...https://books.google.ca/books/about/Ruby_Under_a_Microscope.html?id=P7AdAgAAQBAJ&utm_source=gb-gplus-shareRuby Under a Microscope
