The manuals are the most important material in the daily study of the PIR exam. It is a concise exercise to collect all the Psychology that is asked in the PIR in a very accessible way and to understand in a simple way the most complicated concepts. The APIR manuals contain all the information necessary to answer the vast majority of the PIR exam questions. For this reason, all the themes emphasize the "PIR Approach", a vision of each subject oriented to the PIR exam. The application of Digital