I’ve got this book last week. It’s the most expensive I’ve ever bought and I do not regret!
I am still in the beginning and learned what are Design Patterns, the catalog of the 23 design patterns in this book and how they solve problems. After, will be shown how to select and use a design pattern, a case study and then we delve into each one of the patterns. The authors explain Object Oriented Design and how objects interact with each other as an introduction.
The good thing about this is that the book has a guide and is suited for rookie readers which is awesome!