Azadbakht, Elena, Teresa Schultz, and Jennifer Arellano. "Not Open for All: Accessibility of Open Textbooks." Insights, 2021. https://insights.uksg.org/articles/10.1629/uksg.557
Dean Talbot. "Number Of Books Published Per Year." WordsRated, 2022. https://wordsrated.com/number-of-books-published-per-year-2021/
Dobson, Victoria, and Alistair McNaught."Crowdsourcing E-Book Accessibility Information and the Impact on Staff Development." Insights, 2017. https://insights.uksg.org/articles/10.1629/uksg.358
Kreutzmann-Gallasch, Antje, and Simone Schroff. "A Case for Openness - Book Publishing and the Role of Amazon." International Review of Industrial Property and Copyright Law (IIC), 2022. https://pmc.ncbi.nlm.nih.gov/articles/PMC8889052/
University of Plymouth. "What is the Future of the Book in the Digital Age?" University of Plymouth. https://www.plymouth.ac.uk/discover/what-is-the-future-of-the-book-in-the-digital-age
Van Dien, Alexis. "The Ebook: A Historical Timeline from 1930 to Today." Bookstr, 2023. https://bookstr.com/article/the-ebook-a-historical-timeline-from-1930-to-present/