Hot off the Press! These are not your eldritch manuals or ancient folios of doom. These are random books, a GM can use whenever a PC reaches for a shelf, which usually happens when said GM is least expecting it. These can be found in most libraries, many private homes, and anywhere else one could expect to find a book. More than a few have some built-in plot hooklings as well, while others, like many books of our age, are plain drivel.
It has been said that within the mountains (or was it the darklands?) there dwells a fluffy creature of immense cuteness. This creature is so adorable that all who encounter it are filled with joy so great their mortal forms cannot contain it. And they explode. Several magic institutions are desperate to study the creature or better yet capture one to prove the theory of an elemental plane of "D'Awwww".