2 books in series

New Cthulhu

New Cthulhu is a 2-book series with 2 released primary works first released in 2011 with contributions by Elizabeth Bear, Caitlín R. Kiernan, Michael Marshall Smith, John Langan, Marc Laidlaw, Lon Prater, Michael Shea, Charles Stross, Dale Bailey, Nathan Ballingrud, Cherie Priest, Laird Barron, Nick Mamatas, Tim Pratt, Steve Duffy, W.H. Pugmire, Neil Gaiman, John Shirley, Sarah Monette, Paul McAuley, William Browning Spencer, David Barr Kirtley, Holly Phillips, Don Webb, Norman Partridge, Cody Goodfellow, China Miéville, and Kim Newman.

New Cthulhu: The Recent Weird
New Cthulhu 2: More Recent Weird