Collingbourne H. The Little Book Of Ruby

Dark Neon Ltd. 2008. 2nd Edition, 87 p.
Learn Ruby In Ten Chapters…
Chapter One : Strings and Methods
Chapter Two: Classes and Objects
Chapter Three: Class Hierarchies
Chapter Four: Accessors, Attributes, Class Variables
Chapter Five: Arrays
Chapter Six: Hashes
Chapter Seven: Loops and Iterators
Chapter Eight: Conditional Statements
Chapter Nine: Modules and Mixins
Chapter Ten: Saving Files, Moving On