I wish to point out some issues I've found about the Unity tutorial website. Whilst programmers and moderators of this website may reply or comment, I honestly don't expect them to as they don't hold any responsibility towards the website. I hope moderators and experienced programmers can pass this message if any have the chance to do so. - i found a basic youtube tutorials which are easier to understand. Examples include 3D movement of cubes since the real world is in 3D. I feel these these examples are far more realistic than having to go through all the technical contents (concepts, principles etc.) and then trying to understand what is happening. Let's be honest, unless they happen to be very academic minded, the unity team probably wasted their time designing it despite whatever effort made. - These tutorials (meaning those not in unity forum) are complete and independent - meaning that you can write an app immediately. With reference to this, why bother checking the unity forum? - Those responsible for the unity tutorials made the very bad mistake of focusing too much time by explaining concepts and principles. Let's be honest again - why bother reading all the concepts and principles when my desktop / mobile app can work perfectly well? - For beginners, all the concepts and principles isn't very useful. Unless you are able to apply these concepts and principles, what you learn remains entirely academic, theory and not of much use. Beginners probably won't understand it well as there's too much to learn anyway. If the unity team reads this, I really hope you all can really try to improve the situation. For now, the youtube videos I can find are seriously much better. Whilst I'm not an expert, I am learning more things than the unity forum tutorials. That's the sad, terrible part.