Professionalism in Accounts Auditing's main idea is a unique and profound insight. Even though some people frequently deal with numbers, even they do not realize that. This is the idea of the creativity that appears through observation. When the accountant and auditor find an arithmetic difference, and when either tries to discover this arithmetic difference to correct the error, it may take a long time to discover it, and this is a waste of time and effort. The successful auditor has to take the shortest way possible to discover this error, and this can only be achieved through practice. Hence the role of the auditor and the creative expert with high efficiency and extensive experience in his accounting work, is needed to illuminate the way for the novice accountant and auditor in his long path at work. This is the idea of the book and the methods of discovering accounting errors with ease.