Members adhere to a strict Code of Practice designed to help minimise costs to parents by limiting revisions and new editions within a four-year time frame. In 2012, IEPA members revised fewer than 1% of their 2,114 combined publications. In 2015, some 35 titles or 1.3% of the total 2,688 books were revised. Importantly, more than 50% of revisions are mandated by the NCCA on behalf of the Department of Education and Skills.
IEPA textbook authors are made up of 97% practising Irish teachers. IEPA member firms employ 254 people directly and about 270 indirectly in areas such as freelance editing, design, illustration, web development and external warehousing.