From ACVM:
"Candidates are advised to review relevant and current veterinary medical curriculum notes, but are reminded that as specialty certification examinations, the expected level of preparation and knowledge is much higher than a review of veterinary medical curriculum. Candidates should plan to study advanced and graduate level information resources. Review particularly relevant subjects such as bacteriology, mycology, immunology, parasitology, virology, infectious diseases, epidemiology, histology, pathology, therapeutics, statistics, and molecular biology and technology.

"There are many excellent and useful textbooks available. Pay particular attention to the most recent editions of the listed examples. The figures, diagrams and photographs in texts are particularly useful in preparing for the specialty (Part II) examinations. The following are examples of some textbooks that will be helpful. The list is not all-inclusive, nor is it necessary to study all texts.

"Read current scientific literature. Read thoroughly and critically all journals you feel to be pertinent. This is a formidable, but not impossible task. Place greater emphasis on refereed journals. Figures and diagrams in journals are particularly useful for the specialty (Part II) examination."