It is cheaper to produce and sell E-books rather than physical textbooks.
Credits:
Created with images by karen horton - ""In E-Book Era, You Can’t Even Judge a Cover"" • free pictures of money - "Money" • kaboompics - "man reading touchscreen" • AnnieSpratt - "reading book illustrated" • janeb13 - "books reading relaxation irex" • Plutor - "just the ones i'm getting rid of" • Pexels - "adult blur chair"