- Decline of Facebook traffic to top 30 publisher websites since January: 32%
- Decline of Facebook traffic to top 10 publisher websites since January: 42.7%
- Decline to Huffington Post: 60.1%
- Decline to Fox News: 48.2%
- Decline to Buzzfeed: 40.8%
- Change in publishers’ trade book sales from January to July 2015: +0.3%
- Change in publishers’ trade book sales when compared to 2014: -2%
- Change in publishers’ ebook sales when compared to 2014: -11.2%
- Change in publishers’ digital audio sales when compared to 2014: +37%
- Market share of Big Five publishers in 2014: 28%
- Market share of Big Five publishers in 2015: 37%
- Market share of self-published books in 2014: 14%
- Market share of self-published books in 2015: 18%
- Market share of all other publishers in 2014: 58%
- Market share of all other publishers in 2015: 45%
Sources: Facebook’s Traffic to Top Publishers Fell 32 Percent Since January, Publishers’ Net Revenue and Growth for First Half of 2015, Self-Publishing & Big Five Dominate Book Market, According to Nielsen

Jane Friedman has spent her entire career working in the publishing industry, with a focus on business reporting and author education. Established in 2015, her newsletter The Bottom Line provides nuanced market intelligence to thousands of authors and industry professionals; in 2023, she was named Publishing Commentator of the Year by Digital Book World.
Jane’s expertise regularly features in major media outlets such as The New York Times, The Atlantic, NPR, The Today Show, Wired, The Guardian, Fox News, and BBC. Her book, The Business of Being a Writer, Second Edition (The University of Chicago Press), is used as a classroom text by many writing and publishing degree programs. She reaches thousands through speaking engagements and workshops at diverse venues worldwide, including NYU’s Advanced Publishing Institute, Frankfurt Book Fair, and numerous MFA programs.

