Learning to draw is one thing and learning to draw on iPad digitally is another. There are many iPad apps for drawing. I’ve tried ArtStudio and Procreate. Both offer very good features. I particularly like Procreate’s feature of creating a video from the drawing in progress. I did have to slow down to the video 4x for ease of viewing below:

Thanks to many amazing Youtube channels like Shoo Rayner’s Youtube channel below, you can practically learn drawing on your desk.: