This is one of the best documents you could ever purchase for pathfinder, and I wish more systems had something like this. I am usually highly skeptical of paying for products (especially from 3rd party), especially those I cannot review before purchasing, but this Reference document has helped immensely.

Most "Rules Compendiums" are highly verbose and full of fluff text, which negates the purpose of what they are supposed to do: reduce time researching the rules which are causing conflict at the table. This booklet contains nothing but easy-to-read tables, diagrams and examples, all organized in a simple and coherent fashion.

Thanks Myth Merchant!