- Increase in US print sales of adult nonfiction books in 2015: 7%
- Increase in US print sales of art/design/photography category in 2015: 60%
- Decrease in US print sales of computer category in 2015: 9%
- Decrease in US print sales of humor category in 2015: 5%
- Increase in US print sales of adult fiction books in 2015: 2%
- Increase in US print sales of the classics in 2015: 32%
- Decrease in US print sales of psychology/horror in 2015: 33%
- Decrease in US print sales of mystery/detective in 2015: 12%
- Pottermore revenue in 2014: £31.8 million
- Pottermore revenue in 2015: £7 million
- Pottermore profit in 2014: £14.9 million
- Pottermore profit in 2015: -£6 million (loss)
- Average pageviews per month at Wikipedia: 18 billion
- Number of new articles added every month to Wikipedia: 20,000
- Number of registered Wikipedia users: 23 million
- Number-one Wikipedia article (English language): List of deaths by year
Sources: The Hot and Cold Book Categories of 2015; Harry Potter Digital Arm Loses £$6m and Sheds Jobs; Wikipedia at 15

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.



