"Hybrid publishing companies behave just like traditional publishing companies in all respects, except that they publish books using an author-subsidized business model, as opposed to financing all costs themselves and, in exchange, return a higher-than-industry-standard share of sales proceeds to the author. A hybrid publisher makes income from a combination of publishing services and book sales.
Although hybrid publishing companies are author-subsidized, they are different from other author-subsidized models (i.e., self-publishing service providers) in that hybrid publishers adhere—without exception—to IBPA's Hybrid Publisher Criteria. Regardless of who pays for editorial, design, and production fees, it is always the publisher that bears responsibility for producing, distributing, and ultimately selling professional-quality books."
IBPA HYBRID PUBLISHING CRITERIA n.d. (Retrived 6/28/26)
https://www.ibpa-online.org/page/hybridpublisher
