Eliminate the friction between your PDFs, reading and writing. How? By using links, including deep links, between your PDFs and your drafts, notes, outlines, tasks, emails, other PDFs, and more! Bookends has excellent support for linking. Hookmark uses that support to ensure you can instantly navigate to and from your PDFs. This includes deep links to specific locations in big PDFs. This not only saves you time, it allows you to learn more deeply and to produce much better PDFs than your competitors (others researchers, other students, etc.) Hookmark (https://hookproductivity.com) is a CogSci Apps® invention (https://CogSciApps.com). CogSci Apps Corp. was co-founded by Dr. Luc P. Beaudoin of Simon Fraser University (https://cogzest.com/about/founder/). On ResearchGate he is : https://www.researchgate.net/profile/Luc_Beaudoin3/contributions. At CogZest he is http://cogzest.com/about/founder/. According to Merlin Donald's theory of consciousness (and Beaudoin agrees!), an essential aspect of human consciousness is the ability to rapidly retrieve information. In some theories of expertise, this is known as long-term working memory. Hookmark enables you to instantly retrieve information related to your context. For academics, a key type of context is in PDF. Hey, @johnvervaeke @OpenLearn_OU @UBC @RYANRHODES-cogsci , what do you think?