It's an ideal book to start with, especially when we are talking about Ruby. However, this book is an introduction-type, so be ready to read a couple of others for getting the ground.
I found it a bit too easy for me, but it is so well written that I just couldn't put it aside.

Some classmates are being driven crazy by the author's inner monologue but I think it's fine- I'm glad it's not a dry book, I like that there's a little personality.

Después de leer el tutorial gratuito en línea (del cual realicé una traducción disponible en http://goo.gl/3UcZi), quede realmente complacido por el acertado manejo de la complejidad que se da al tratar los conceptos de cda capítulo. Encontré en el libro varios ejercicios y temas que complementan el tutorial en temas de manejo de archivos. Aunque algunos de los últimos problemas sugeridos son bastante desafiantes y probablemente no son aptos para personas que tengan con éste libro su primer contacto con la programación, el estudiante que logre resolverlos quedará muy satisfecho de sí mismo.

Me gustaría que hubiera más material de éste tipo sobre Ruby, disponible en para hablantes del español.

What can I say? I wrote a Chris Pine Appreciation Post here: http://marydickson.com/chris-pine-app.... This is a great teaching companion. For one, the book has great examples and challenge problems — they’re fun, whimsical, not too easy or difficult, and reinforce key ideas from the chapters. What’s more, they’re the type of programing challenges that a more advanced student could take and build on (make it better, make it live on the web, etc). I also especially admire the way he introduces and teaches recursive programming (further explained in my blog post). Very good for beginners or anyone seeking to go back to basics!

One of my all-time favorite books to recommend to any student or person who is getting started with programming.

Funny and easy to read :)

Recommended by a coworker as a great primer on Ruby--and it is! I bet it would also makes a great introduction to programming in general.

It never occurred to me that a book on programming for beginners could be as approachable and engaging as this one is. Its one of the first two textbooks we use at Ada Developers Academy. Highly recommended.

The exercises in this book are very well balanced and entertaining. I would recommend this book to anyone getting started in the world of Ruby.

bagus nih, buat yang mau learn to code dari nol pakai ruby :)

awesome book, though would have been much improved if the author had made example solutions available from somewhere

A very non-programmer friendly introduction to the Ruby programming language, as well as some common programming concepts. However, you'd certainly need to read through other material because this is just the tip of the Ruby iceberg.