A History of Mathematical Notations: Vol. Ii
Florian Cajori
The Bullet Journal Method: Track Your Past, Order Your Present, ...
Carroll, Ryder
Rework
Jason Fried & David Heinemeier Hansson
Damascius' Problems and Solutions Concerning First Principles
Damaskios
Hypercomplex Numbers: An Elementary Introduction to Algebras
I. L. Kantor & A. S. Solodovnikov