The first time I saw someone taking notes in a visually enhanced manner was at a conference and it really piqued my interest. I wanted to start doing that myself, more as a creative exercise so I stumbled upon this book.
It is probably one of the best resources if you want to get into sketchnoting. You don’t have to know how to draw in order to do it. Mike has some exercises that can be really useful and plenty of examples of sketchnotes.
The best approach is to just start doing it and you will get better and better at it. This book will teach you how to draw simple objects and how to visually enhance your lettering.