Concept: “A bestiary brimmed with 105 pages, 42+ Occult monsters, including Esoteric scriptures to die for, and Hopeless dungeons to die even more for.”
Content: Monsters and scriptures and dungeons, Oh my!
Writing: Text ranges from bloviated to concise; brisk to simple. But it is reliably miserable.
Art/design: A menagerie of styles as creative and varied as the community which spawned them.
Usability: Divided in three sections with a full index to aid navigation. Entries of varied accessibility and ease of reference at your table. 

“Everything from new classes to strange new locales”

Concept: “Life is short. Steal a fort.”
Content: Events. Hirelings. Fortifications. Amenities. Renovations. Allies. Animals. Curses. Hooks. Taxes. Everything you need to run a stronghold.
Writing: Atmospheric, informative, and witty
Art/design: Graphically diverse, with efficient layouts and typographical choices
Usability: Some related content isn’t in close proximity, but page gestalts and section headers make it easy to find what you’re looking for

Concept: “Miserable wretch who thinks he’s funny.”
Content: A clever wordplay-based adversary
Writing: Stats and special (which is a list of pun-based attacks)
Art/design: Text colors amidst monochrome emphasize important rules and bad puns
Usability: Can be hit only by punny players; regardless, has a max lifespan of 10 rounds