A lawsuit accuses Cengage of “diluting the net receipts from which royalties are calculated” and paid to textbook authors “simply because the sale at issue happened to occur digitally.” Textbook authors on Tuesday sued the publishing company Cengage for allegedly violating the terms of their contracts by altering how it calculates royalties for some digital sales.
https://www.chronicle.com/article/Textbook-Authors-Say-Their/246960
