To learn more by recognizing that there are several open access routes, none of the strategies implemented to date have succeeded in undermining the dominance of the Paywall system in the scientific publishing market; Today, more than 15 years after the Berlin Declaration, more than 80% of the world`s scientific results are still trapped behind the walls of wages, hampering the full effect of research and weighing heavily on institutional budgets. At the same time, revenues from subscription publishers to hybrid publishers are increasing year on year. Transformative agreements provide a framework for institutes to take immediate action and directly address the subscription (and hybrid edition) payment system. Given that the vast majority of publications and scientific editions of a given institution tend to be concentrated in journals/packages of a relatively small number of publishers, implementing transformative agreements with these publishers is notably a high-impact strategy: many institutions and consortia believe that negotiating such agreements with fewer than 10 publishers allows them to obtain immediate open access to the vast majority of their results. At the same time, transformation agreements can play an equally important role in converting corporate portfolios and small and medium publishing houses, and they have a multitude of models (not just APC-based) that reflect the diverse and fluid landscape of scientific communication. Thanks for this awesome article, Lisa! This article was very necessary for those who are struggling with the definitions of RAP and RAP agreements. I just wanted to clarify: this (on.ft.com/2W2jDsZ) article on FT says: “With 9 million euros, Unit Elsevier will pay about 3% more for access to magazines like The Lancet and Cell.” While the link you later shared on Twitter (bit.ly/2W32gIJ) says, “About 400 magazines owned by academic associations, as well as the third-party titles Cell Press and Lancet, are not part of the agreement” and that “There is no increase in costs, and no default publication fees” [Google].” Does this mean that the addition of Cell Press and Lancet is largely responsible for the overall 3% increase in costs? P: “These are good questions. Let`s first talk about how subscription magazines – including the most ruthless factors – will cope with this change. To allow the transition to open access, transformative agreements (TAs) can be used. In principle, a TA changes the contract between a subscriber, z.B of a library, and a publisher. The change is made from a subscription model to an open access model. Why should institutions translate transformation agreements into their open access strategies? As powerful as we believe that transformative agreements are in transition to full and immediate open access, there may be deposits where such agreements may not be the best way to facilitate the transition to full open access.