Huw Cullingborne offers a free YouTube channel with a "Programming for Beginners" course. Though he doesn't teach you how to program in eScript he does introduce you to programming concepts and fundamentals. His free course is aimed at the beginner with no prior programming experience but even if you have experience you will no doubt pick-up some tips. I have subscribed to some of his Udemy courses and he is a good instructor.

Here is the link to his YouTube channel.