Headfirst Design Patterns is the first book in the headfirst series, presenting design patterns in a totally new way. The book has a lot of software and non software examples. It keeps talking about the essential parts and skips the bla bla parts encountered in most of the books and replace it with visual examples more easier to understand and digest.

The code is minimalistic, written in java or pseudocode. Most of the examples are explained through pictures and notes so the book is recommended for non java developers as well.

The following pdf sections are available for preview:

• Table of Contents
• Complete Chapter: Chapter 3, The Decorator Pattern

The book is available on Amazon: Head First Design Patterns (Head First)