IngramSpark lets authors publish electronic, hardback and paperback editions in their textbooks. It distributes textbooks to most on the net bookstores. Bricks-and-mortar suppliers also can buy textbooks from IngramSpark at wholesale charges for sale in their own personal venues. Publish print and digital formats in three simple ways, and see https://directoryhere.com/listings919405/not-known-factual-statements-about-self-publishing