If one wants to review in advance, the best booklet is the Rules, Polices and Guidelines for Conformation Judges. The others provided are more supplementary. However, as it is open book, there is not a need to study in advance. Judges will do much better referring to the rules and regulations booklets while taking the exam. When they do not, the same errors that are taking place in the ring are being duplicated in their answers. The intent is to educate our judges on proper procedure and provide them with an understanding of policies so scenarios they may encounter are managed properly.