Out today, two volumes hardcover, edited by Peter Straub, released by the invaluable Library of America.
You can buy each volume separately (Vol 1 Poe to the Pulps, Vol 2 1940s to the Present), but why bother? Amazon is selling it at a healthy 37% off the $70 MSRP, with free shipping, so you get both–a total of 1500 pages!–for $44, about twenty two bucks a volume. Sweet. Kirkus calls it “a terrific, must-have collection.”