This pdf contains weighs in at 11 pages, with 6 pages of content and the rest devoted to front and back covers, OGL, title page, etc.
Full Disclosure: I was given a free copy of the pdf in exchange for writing a review, and this is not a playtest review.
The cover displays the Shattered Skies logo, but none of the content makes specific reference to that campaign setting as far as I could tell.
The librarian is a hybrid class of Bard and Occultist. The concept seems to be a flexible know it all who can boost herself or her allies, and the class achieves that goal, at least on paper. The class has poor BAB, good will saves, d6 hit die, and 6 skill points per level. Like the two classes it hybridizes, it offers 6 levels of spellcasting combining Bard and Occultist spell lists depending on choices the player makes.
Overall, the Librarian seems quirky, flavorful, and interesting, but not powerful enough to hold its own in a traditional adventuring party. The spellcasting of the class is unusual. At level 1 and every 3 levels thereafter, the Librarian can choose a libris (a book of ancient knowledge). This libris gives her one spell known, a power, and limited access to all spells from the Occultist and Bard lists of one spell school. The Librarian can choose to swap out the spell known for another spell from a school his books give him access to. This takes 1 minute, and he retains this spell for 1 hour. At the same time, the Librarian has spells per day.
This, plus all of the other makes the class mechanics what I would call fidgety. There are a lot of abilities other than spellcasting, each with a few options baked in, so there could be many choices to make in play. A player who likes to be on top of a lot of options would enjoy playing this class.
Where many of the hybrid classes in the Advanced Class Guide are fairly powerful, this class seems less powerful than an optimized Bard or Occultist.
That said, it is a class that could be fun to play, and I intend to make use of it in an upcoming urban campaign
Layout is attractive and professional, and the art is all good to excellent. There are a few grammar and punctuation mistakes, and one particularly onerous description of the Sharp Analysis ability.
