The Author's Guide to Building an Online Platform: Leveraging the Internet to Sell More Books Showing the single result Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Sale! The Author’s Guide to Building an Online Platform: Leveraging the Internet to Sell More Books Premium $14.95 Original price was: $14.95.$7.47Current price is: $7.47. BooksAdd to cart