On the other hand, self-publishing platforms do have low barriers to entry. Yet, the nature of such low barriers has shaped a highly competitive marketplace, where the fight for attention has become a real problem for the unknown author, who just wants to write - not to become a marketing agency. As such, to make a living from writing authors who choose the self-publishing route must pay large amounts of money to gatekeepers to promote their work. And even after building a solid brand and base of readers, self-publishing platforms still take a large percentage of the revenue earned by authors (up to 60%).