I have been working as auditor, based both on the Hungarian accountancy law and IFRS, since 2000. Since 1996, I have been active also in Hungarian and English language trainings in accountancy and auditing within higher education and adult education. In College of Finance and Accountancy of the Budapest Business School, I read lectures on accountancy and IFRS for chief accountants and auditors as University Associate Professor. I am regularly invited by foreign universities as guest lecturer. In connection with my audit and training activity, I have written many scientific papers and books.