Office Assistant - Paperbackby Passbooks (Compiled by) The Office Assistant Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: office practices; clerical aptitude; name and number checking; reading; understanding and interpreting written material; basic arithmetic; verbal ability;