* Updated June 2022 * Book also provides you FREE Access to Online Instructional Videos. See video codes in the book This book is about the 23 common GOF (Gang of Four) Design Patterns implemented and in Python. A Design Pattern is a description or template that can be repeatedly applied to a commonly recurring problem in software design. You will find a familiarity with Design Patterns very useful when planning, discussing, developing, managing and documenting your applications from now on and into the future. You will learn these Design Patterns. Creational : Factory - Abstract Factory - Builder - Prototype - Singleton Structural : Decorator - Adapter - Façade - Bridge - Composite - Flyweight - Proxy Behavioural : Command - Chain of Responsibility - Observer Pattern - Interpreter - Iterator - Mediator - Memento - State - Strategy - Template - Visitor. If you want a break from your computer and read from a book for a while, then this book is for you. Thanks, Sean Bradley