Collect 3 Skraug Strength Belts, from the Skraug Strength Belt Quest, and give them to Provost Grant Anfust with the keywords Skraug Strength Belt, Yes.

Rewards:

• Collector's Book
• 3,000 XP per level

In total, 1 Collector's Book will have cost you 75 Moon Tug Scalps!

You can complete this quest at will.