859 Book recipes
The Forever catalog holds 859 Book recipes, topping out at item level 60 with Blueprint: Molten Foundry, Blueprint: Seed Hybridizer, Blueprint: Trapper's Workbench. Every recipe item in the game: patterns, plans, schematics, formulas, and cooking recipes, by profession. Recipes are one of the most traded categories on the auction house; each page shows what the recipe teaches and what it sells for.
By quality: 788 common, 42 rare, 29 uncommon. Item levels run from 1 to 60, for characters from level 1 to 60. 78 bind when picked up and never reach the auction house; 781 can be listed.
The highest item levels here: Blueprint: Molten Foundry (60), Blueprint: Seed Hybridizer (60), Blueprint: Trapper's Workbench (60), Book of Ferocious Bite V (60).
Source: World of Warcraft: Forever game data and Blizzard's Game Data API. Updated with each game build.