By taking you on Monday-through-Friday work day adventure with a pair of programmers, Paolo Perrotta help make mastering the art of metaprogramming both direct and entertaining. This book is packed with: Pragmatic examples of metaprogramming in action, many of which come directly from popular libraries or frameworks, as Rails. Mantras metaprogramming - 34 practical recipes and idioms that you can learn and apply now, to write code that would be impressed. Whether you're a Ruby apprenticeship on the road to mastering the language or the Wiz Ruby in the search for new tips, this book is for you.