Top positive review
Good book, might be hard for young kids to use
Reviewed in the United States on January 20, 2013
My son is 8 and he loves Legos. He is very used to following the Lego instructions step by step. This book is different than lego instructions so he hasn't taken to it yet. For example, this book will give you ideas about how to orient a motor (with specific pieces) to make a creation do something. There is really no step by step building process as in Lego instructions. There are pictures of a creation, at various stages of being built and can sometimes be hard to see how something is put together. As he grows out of the step by step style of building Lego creations, this book will be more useful.
Also, you can ONLY recreate what is in the book if you have the same pieces. Unfortunately, because we only have a relatively few number of Lego Technic pieces and motors, we cannot build most of the examples in this book. (We're in the process of buying more pieces.) For example, the motor we have is bigger than the one used throughout most of the book so we cannot build most of the books creations without buying the smaller motor. I think that as my sons collection of Technic grows, this book will become more useful.
Overall I think this is a good book, but it requires a different way of thinking about how to build something. Also having most of the pieces and motors (that author uses in this book) is kind of a requirement so that you can build what you see. Hope this helps!