Flat World Knowledge’s “Freemium” Textbooks Gain 140,000 Users, Average $34 Per Sale

In Feature Articles by Guest Contributor

• Flat World Knowledge, a three-year-old textbook publisher, has released 24 titles which are now in use by 140,000 students at over 800 universities in the United States and another 50 abroad. • The company allows students to read the textbook for free online, while selling them POD, e-book and other editions. Over half of users opt for these additional …