Lee Zhi Eng is a self-taught programmer who worked as an artist and programmer at several game studios before becoming a part-time lecturer for 2 years at a university, teaching game development subjects related to Unity and Unreal Engine.
He has not only taken part in various projects related to games, interactive apps, and virtual reality but has also participated in multiple projects that are more oriented toward software and system development. When he is not writing code, he enjoys traveling, photography, and exploring new technologies.
Ray Rischpater is an engineer with over 20 years of experience in writing about and developing for mobile computing platforms. He holds a bachelor's degree in mathematics from the University of California and is a member of the IEEE, ACM, and ARRL. He has participated in the development of internet technologies and custom applications.
Currently, he's employed as a technical program manager at Google. In his free time, he enjoys hiking and photography with his family and friends. He provides public service through amateur radio at the licensed station KF6GPE and also irregularly blogs. He has authored this book's previous editions as well as several other books.