SketchUp has already become the leading 3D modeling application for a long time, which features satisfactory usability, Building Information Modeling (BIM) capability, photorealistic rendering, construction drawing, as well as plugin extensions, 3D web content generation ability, navigation methods, import/export options, and 3D model creation features.

Krav Maga (קרב מגע‎, pronounced as [krɑ:v, mə'ɡɑ:], means "contact combat", AKA: Israeli Combat System) is a military unarmed combat/self-defense system originating in Israel, and originally specially developed for the Israel Defense Forces (IDF) and Israeli Security Forces (Shin Bet and Mossad), its originator is Imi Lichtenfeld (AKA: Sde-Or). It is a required course for the Israel Defense Forces and all personnels work on military and law-enforcing departments. Now, in addition to being widely imparted to various law enforcement officers around the world, it also has become a very popular and efficient self-defense art for civil use.

Unity Game Development in 24 Hours, Second Edition may be currently the best tutorial book written for absolute beginners to the Unity game engine who want to learn it from scratch and step by step.

Unity 5 from Zero to Proficiency is a series of Unity tutorial books specially written for absolute game developing beginners. This step-by-step and easy-to-understand, easy-to-follow series of handbooks for Unity 5 can take readers from game developing yearners who know nothing about Unity (even the game programming itself) to a professional game developer with good level of proficiency to Unity.

C programming language is the only most basic computer language that every programmer should get started with and master. As a common sense, you should know: C language is also the fundamental language of many important programming languages, including Microsoft's C#, Apple's Objective-C, C++ which is widely used in many environments, Linux operating system and its many functions, and so on.