Passbooks: - National Learning Corporation has been a leading publisher of test-preparation Passbooks(R) for more than 50 years, with 6,000 titles available across 22 series. The New York State Teacher Certification Exams (NYSTCE) are required for all candidates seeking licensure in the State. The NYSTCE series consists of many different tests assessing skills and abilities necessary for teachers. Each book offers practice through multiple-choice questions and answers in relevant subject areas, as well as informative texts to aid in understanding the study material.