I never take any notes or draw charts or make elaborate diagrams, but I hold an image of the shape of a book in my head and work from that mental hologram. ↗
I bought one of those Learn How to Play Guitar Chords By Yourself and it shows you the diagram where to put your hands and I took that in my room, sat with my singles and learned how to play guitar. ↗
The Government are very keen on amassing statistics - they collect them, add them, raise them to the nth power, take the cube root and prepare wonderful diagrams. ↗
Having marshalled the men in battle order, as shown in the first diagram, you will observe that each party has two ranks of men, on the first of which stand the superior Pieces, and on the next the eight Pawns. ↗
By shading off, as I have done, the portion of the area of the diagram according to the individual age, every one may see how much of life is consumed, and what is left. ↗
This simple idea served to provide information on the geometrical shape of reacting molecules, and I was able to make the role of the frontier orbitals in chemical reactions more distinct through visualization, by drawing their diagrams. ↗