I published a new video lesson for beginners, where I explain the concepts of the object-oriented programming (OOP) with live code examples. The video is short, but is very informative and explains the OOP principles in a clear and easy to understand way, briefly, concisely, and in simple words. Learn about objects, classes, interfaces and

After years of hard work the free book “Fundamentals of Computer Programming with C#” was finally published (in September 2013). The free C# book comes with free video lessons, presentation slides, mind maps, exercises, guidelines and exercise solutions to help learners to study the foundations of computer programming and trainers to teach newbies in programming,