The writing of the book "Computerized Accounting" is an important authoritative tool that can help the success of graduates of the Vocational Training Institutes of the Ministry of Education, the Ministry of Labor / I.E.K. O.A.E.D., the Sivitanidio Vocational Training Institute, and the other Vocational Training Institutes in Greece in the Examination for Certification by EOPPEP in several specialties (mentioned below). It also helps students of EPAL and EPAS OAED, as well as trainees of the I.E.K. The book provides rich material for the examination of the Practical Part of Certification in Computerized Accounting, oriented towards the requirements of the Certification Examinations for Initial Vocational Training by EOPPEP, for the acquisition of a Diploma of Professional Education and Training at level 5.