What are your favourite books about cooking ?

[Lynnel]

I am not looking for recipe books per se but rather general books about how cooking is done related to spices/fat/acid, etc to master and understand cooking as a skill.

@Joseph Maynor You made a whole topic about tasty cooking so you might have some great recommandations as far as I remember  

[pluto]

SimplyHealthyCookbook.pdf

[moon777light]

"life changing foods" by anthony williams is incredible