1. According to official website, the game of My World, there are nine kinds of enchanted books: accurate collection, rapid underwater excavation, binding curse, disappearing curse, attracting thunder, experience repair, infinity, rocket and multiple arrows.

2. Class II includes four types: flame attachment, repelling, frost walker and impact.

3. Category III 12: underwater breathing, bait fishing, reputation of the sound of the sea, quick loading, soul galloping, wealth, thorns, marine explorers, endurance, rapids, snatch and loyalty.

4. Category IV includes six types: various protections (normal, flame, explosion, ejection, falling) and penetration.

5, V (6 kinds): efficiency, undead nemesis, arthropod nemesis, puncture, strength, sharpness.