Rating:  - I finally get it!
This book is wonderful for someone is is thinking about OO. I code in PHP and have struggled through different coding books on how to implement OO in my designs. Those books showed me how, but never showed me the why. This is the first book that I've found that takes a step back and looks at OO for an abstract view that lets you better appreciate the practical view. For those starting in OO design, this book should be prerequisite reading before any specific lines of code are written. I would highly recommend this book. For the first time, I can say, "I get it."
Rating: - Excellent!
Many books on programming include chapters on OOP, this book is different.
It's not a programming book - but a book on thinking in OO and in my opinion, does a great job of it. There's some code (generally java) used to illustrate concepts - although the subtext on the cover mentions Java and .NET - neither are needed to understand the book.
The book starts with the big picture and then drills down into specifics. I'm not always a fan of a spiral approach but in this case it really works. I especially enjoyed the Case Study in Chapter 6 where blackjack classes are created. It's a good exercise to go through creating your own classes and comparing them with those the author comes up with. As the author points out there are some strong opinions out there on the use of inheritance vs composition. I was happy to see that the author illustrates the use of both stating that they are both valid OO techniques.
I highly recommend this book to anyone who is interested in a more conceptual understanding of OOP than what is generally found in books on programming languages. I would be happy to find more books by this author, I found his writing style very clear.
Rating: - Just great!
This book is the OOP concepts starting point with clear definitions of oop terms and practices. Just don't try to get into oop without getting the idea first.
Rating: - Only explanation of OOP that made sense to me
I am a relative newcomer to object-oriented programming (OOP), though I am an experienced programmer in non-OOP languages (Fortran 90, IDL). I've had several people try to explain to me what OOP is and isn't, but thier explanations never made sense. I picked this book up and read it and everything clicked the first time through. The author does a great job of explaining OOP and why it is important.
I highly recommend reading this book cover-to-cover BEFORE learning an OOP language. And, although the examples all use Java code and I was learning Ruby, I found that it didn't matter. So, don't think you have to know or be learning Java to get something from this book.
Rating: - Excellent Book
This is an excellent book. Its perfect for anybody looking for a book to get a little further insight into how object oriented concepts are used. I have read a few reference books that describe object oriented concepts such as classes, interfaces, objects, ect. And although they explain the concepts and how to code them they do not go to far in regards to the underlining meaning of the concepts and how they all fit together or how to use them. This is what the books about.
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