My friend Eva-Lotta Lamm just published a course about visualising information through illustration.
Learn to structure presentations and other content as well as take expressive meeting notes in real time by combining text and sketches
The course is on pre-sale right now for €19,90 instead of €59,50 and worth every cent. If you are into sketching and visualising your thoughts, you should get it. If not, you should also get it to get into sketching. Structure your thoughts, communicate with visual notes and learn new techniques, if you already use sketching.