CHEAT – All Skill Books – Console Command Bat
This will add all Skill Books in the game to your bag (Notes).
To make them actually give the passive effects you have to drop them all and pick them up again to trigger the bonus.
Extract the skills.txt file to your Starfield content folder (Where starfield.exe is located) and then run
bat skills
from the console ingame (tilde key ~)
Once dropped and picked up to activate you can sell or drop the books.
Since this is a console cheat, you will need some Achievement mod to keep Achievements enabled in your save game.