If you wish to understand the Cavalier class and to expand the options available to these mounted combatants, the Cavalier’s Creed is an excellent sourcebook. The feats contained within are mostly applicable to all classes but especially those characters with a mounted focus.
The Cavalier’s Creed: Advanced Feats is a 16-page PDF (13-pages if you remove the cover, ad and OGL page) for the Pathfinder RPG written by Sigfried Trent and published by Open Design. This is part of Open Design’s Advance Feats line for Pathfinder.
The layout is primary traditional two columns and the table of feats clear to read. The cover is full color while the minimal interior art is mostly black and white carefully chosen public domain art to support the theme.
The Cavaliers Creed begins with an introduction to this product and it intention, which is to provide a detailed look at the Cavalier class and ways to play it as well as providing additional options for the class. It then proceeds to do just that, outlining the strengths and weaknesses of the class and provides basic advice to consider when playing the class. All quite well done.
Next are the thirty new feats, only three of which are tied to Cavalier class abilities, and each has paragraph or so of commentary that talk about the reasoning behind the feat and occasionally potential balance issues with a feat. Personally, I really like this insight into the design process. The feats are solid mechanically and certainly aimed toward what the Cavalier does well including several new teamwork feats and others to be used by mounted fighters.
Concluding the product are three example builds: the Green Knight (defensive), Tawny Knight (expert rider) and the Black Knight (challenge master).
Disclosure: As a featured reviewer for RPGNow/DriveThroughRPG, I received my copy of this product for free from the publisher for the purpose of this review.
[4 of 5 Stars!]