IngramSpark Lets authors publish electronic, hardback and paperback editions in their textbooks. It distributes publications to most online bookstores. Bricks-and-mortar retailers can also purchase textbooks from IngramSpark at wholesale selling prices available in their own individual venues. ALLi downgraded its support rating for Amazon’s audiobook distribution support, ACX, to “Cau... https://maplepublishers.com/self-publishing