This trains your brain for speed-reading, with content you paste in.
Ooh, I want this! It’s a bit spendy but would be a good investment if it lives up to the hype.
A guide to Madeleine L’Engle’s books in chronological order, which is very helpful given the myriad intersections and concurrent books, and also by character/family.
An online English translation of Gracián’s book of wisdom.