I would like to thank all those who helped me make this book possible. A special mention to all the team members at Epic Games for their hard work on Unreal^® Engine and for the great decision of making the engine available to everyone by sharing the source code. Without their hard work and tough decisions, this book would not exist. I would like to thank them for their support along the way since I started using Unreal^®, and all the people I knew at Epic were supportive and interested in my activities with the engine.

I would like to thank all the people at Packt Publishing who worked on this book. They helped me a lot and were patient when I got out of my schedule because of my personal obligations. A special thanks to the technical reviewers; they constantly checked my errors and omissions. This book has become better because of them; thanks to all their hard work. Richard, Arwa, Rebecca, and Faisal; thank you for bringing me on board at Packt and helping me put the book together.

Last but not least, I want to express my pleasure of having Lamiaa, Yusuf, and Mariam in my life. You are all my gifts. You are a very supportive family; thanks for giving me the best environment to write this book, and thanks for believing in all my projects. Father and mother, thanks for teaching me how to learn on my own; it helped me a lot to learn and pass on the knowledge.