In celebration of the 100th anniversary of Alice Sheldon's birth, and in recognition of the enormous influence of both James Tiptree Jr (Sheldon's pen name) and Sheldon herself on the field, Twelfth Planet Press has published a selection of thoughtful letters written by science fiction and fantasy's writers, editors, critics and fans to celebrate her, to recognise her work, and maybe in some cases to finish conversations set aside nearly thirty years ago.Letters From:Kathryn AllanMarleen S. BarrStephanie BurgisJoyce ChngAliette de BodardL. Timmel DuchampA.J. FitzwaterLisa GoldsteinTheodora GossNicola GriffithValentin D IvanovGwyneth JonesRose LembergSylvia KelsoAlex Dally MacFarlaneBrit MandeloSandra McDonaldSeanan McGuireKaren MillerJudith MoffettCheryl MorganPat MurphySarah PinskerCat RamboTansy Rayner RobertsJustina RobsonNisi ShawlNike SulwayLucy SussexRachel SwirskyBogi TakácsLynne M. ThomasElisabeth VonarburgJo WaltonTess WilliamsAnd bonus reprint material including:archived letters from Ursula K. Le Guin, Joanna Russ and James Tiptree Jr./Alice Sheldonexcerpts from The Secret Feminist Cabal: A Cultural History of Science Fiction Feminisms by Helen Merrickexcerpt from Battle of the Sexes in Science Fiction by Justine Larbalestieranessay by Michael Swanwick