Note that these are not Tolkien books, but books about the Tolkien universe.
"A must-have collection covering the lands and inhabitants of Middle-earth.
The fantasy world of J. R. R. Tolkien's Middle-earth contains a rich assortment of people, cities, powers, and creatures—as well as a deep, intertwined history that spans thousands of years. In these specially designed volumes, best-selling author and Tolkien scholar David Day presents four decades of research and writing on the lands and inhabitants of Middle-earth. A must-have guide to the Tolkien world, this collection provides an A-to-Z dictionary of the vernacular, an atlas describing the various terra firma, histories of battles, dark powers, heroes, and the Hobbits that started it all. More than 200 black-and-white and full-color illustrations make the pages a joy to behold as you learn all you'll need to know about Tolkien's fantasy realm."
Cheapest historical Amazon price according to 3Camels. 43% off the average price.
good clickbait.