Thanks for this video tutorial for beginners. Although there are many things that I still don't understand, all the material is given in a very accessible form. I cannot immerse myself in the study to the fullest, because at the same time I'm preparing a review of literature for the college. Although I found a service to help write my literature review, it's still a very time-consuming process. I want to finish all this and dive into the study of these video materials.