Monster Manual Expanded III only costs 12.2 cents per page. Also, the average price per page of the top 20 DM's Guild books is between 15 to 19 cents.

We need to price it at $34.99 for the book to earn a profit once a certain number of copies have been sold. This is where the costs of the book went. Monster Manual Expanded III, in contrast, has 140 exclusive artwork pieces that were commissioned from professional WOTC level artists. The first two Monster Manual Expanded books used mostly stock art for the images. Why is it $34.99? We apologize if the price is higher than the previous two books but let us explain. The biggest change, however, are the gorgeous, professionally commissioned art pieces that will inspire DMs and terrify players! A large number of them will have legendary actions, giving the dungeon master more boss options. There will be more new monsters this third time around, though, most of which come from earlier D&D editions. There are 320 statblocks (using the new Monsters of the Multiverse statblock style) spread across this 280+ page tome, most of which are archetypes and variants found in the Monster Manual, Volo's Guide to Monsters, Mordenkainen's Tome of Foes, and other official 5E adventurer books. Monster Manual Expanded III continues what the two previous Adamantine Best-Selling bestiaries have started, providing dungeon masters with additional creature options to help fill their adventures. Unleash over 300 terrifying new monsters!

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