The lectures haven't been difficult, but the book is hard for me to read. I usually understand math by working problems, but this course doesn't seem to work like that. I just don't know how to complete the exercises in the book. The book is "An Introduction to Complex Analysis and Geometry" by John P. D'Angelo. It doesn't have a solutions manual, either. I need help so that I can understand the text... So, any websites or anything on this website that'll help, please let me know! Thank you very much!