"a small Ruby book. It won’t crush you. It’s light as a feather (because I haven’t finished it yet—hehe). And there’s a reason this book will stay light: because Ruby is simple to learn."
«I have taught an undergraduate compilers course for over a decade. In the last several years, I have used my own textbook "Basics of Compiler Design". I have now decided to make this available online.». "Extended edition" += chapter about analysis and optimization