Also on Kickstarter, and wrapping up in the next couple of days (ends on 9 August, at 6pm EDT/midnight UTC+0), is Legendary Game's Sea Monsters bestiary.

I grabbed their Mediterranean Monsters and Latin American Monsters books last month, and was really happy with both of those. They were thick softcovers with a lot of interesting legendary beasts, spirits, and faeries. And since I apparently just collect monster books now (BattleZoo and Viklander say 'hi'), I'm absolutely getting this one, too.