UFO Disclosure through Scientific Investigation Book Series by John Clark Craig
Proactive Disclosure - Strategies to Encourage Contact and How To Investigate UFOs / UAPs Using Your Smartphone Workbook for UFO Investigators both by John Clark Craig aiding in the Proactive Disclosure movement.

Programmable Calculators using Python - sample programs
These 4 calculators all use Python to enhance their calculators. These programs are both fun and practical for students, engineers and programmers of all experience levels. NumWorks, TI-Nspire, TI-84 and the Casio calculators. Which calculator do you like best - if it is enhanced with Python, you'll love to learn Python by programming on it.

3D - Printing Books using Python and OpenSCAD
Both of these books teach 3-D Printing creation of STL files. Mathematically and programmatically so that you can cxreate amazing - amazing creations, including being able to 3-D print photographs.

John Clark Craig's author page
All the books on John's AuthorCentral page on Amazon.com