The XP Tome allows the player to store a maximum of 30 levels of XP in a a convenient book for easy portability. If you need to keep XP safe or simply want to store it for later use then this mod is great for making that an easy task.
The book starts out empty but if you hold shift+right click it will transport all your XP to the tome until it’s full. You can keep repeating the process for multiple tomes since it has a limited capacity.
And if you want XP back just hold the tome and right-click anywhere with it.
This mod makes for great sharing of XP if you’re on a server and want to have it available for new or growing players. Since the XP is so conveniently stored in a book, you can place them anywhere you’d keep stock of any other book in the game.