How To Bake Pi is a wonderful audiobook about math. Using a lot of analogies, the author brilliantly explains delights of math to people who are not already enthusiasts. Analogies and stories work well on audio, but when it comes time to see the equations, the book becomes difficult to follow.
The occassional diagram, indicated by a soft chime of the audio player, opens up audio for topics like math, archetecture, graphic design, computer science, gardening and DIY surgery tips and tricks.
This way we can avoid the dreaded words...
Please see accompanying PDF
Instead, let's get those illustrations right in the player app, using Timeline Notation!