5 out of 5 rating for Pathfinder Player Companion: Blood of the Coven
This book has a nice fluff to crunch ratio: neither too much "filler" nor too little crunch.  There is even a bit of content for other classes.  An rules index in the introduction is a nice guide to the crunch which includes [FONT="]new archetypes, feats and other player rules (spells, rituals, bloodlines etc.) and equipment (e.g. magic items, psychic implements).  Beautiful cover too.  For more details, check the linked Amazon review.[/FONT]