A review by stoicloofah
Mordenkainen's Tome of Foes by Wizards of the Coast

3.0

Solid addition, though I enjoyed Volos guide more. The background on the elves, dwarves, halflings, and gnomes may help to flesh out those cultures for both players and dms. I thought the blood war segment was the weakest, but if you plan on using it, maybe that was the best part.

I guess you should just look over the table of contents, and that should tell you if you should read it.