The Lifecycle Arcane

The Lifecycle Arcane was a book that described an idealized wizard's life.

It outlined a hypothetical wizard's life as they advanced, proceeding through apprenticeship, cantrip mastery, graduation, acquiring a spellbook, specializing in a school of magic, building a laboratory, crafting a magical item, building a stronghold, taking on apprentices, retirement, and ultimately lichdom.

The lich Adzerak referred heavily to this book in his life, though his completion of the final stage left much to be desired.