Nearly 900 writers, including Stephen King, John Grisham, Jennifer Egan, and Donna Tartt, have signed a letter objecting to the aggressive tactics that Amazon has been using to gain leverage over the book publisher Hachette, according to the Guardian. As part of what appears to be an attempt to renegotiate the split of revenue on ebook sales in its favor, Amazon has effectively begun discouraging its shoppers from buying Hachette books by not offering preorder options and by pushing their shipping times back by weeks in some cases. While this is clearly damaging to Hachette, its also damaging to the authors, who might otherwise be seeing more substantial royalties through book sales.