Various tools for writers operated by the ReAnimus Press crew:

Galaxy Magazine: The Dark and the Light Years, by David L. Rosheim
Staying Alive - A Writer

General:

Modern Science Fiction, by Reginald Bretnor, ed.
Having Relationships With Characters on the Road to Great Fiction, by Andrew Burt
Anthopology 101: Reflections, Inspections and Dissections of SF Anthologies, by Bud WebsterSpace Travel - A Science Fiction WriterThe Issue at Hand, by James Blish (as William Atheling, Jr.)More Issues at Hand, by James Blish (as William Atheling, Jr.)HeinleinFootprints on Sand, by L. Sprague de Camp and Catherine Crook de CampHow To Improve Your Speculative Fiction Openings, by Robert QualkinbushSF in Dimension, by Alexei and Cory PanshinHeinlein in Dimension, by Alexei PanshinThe Science Fiction Novel, by Basil Davenport, Robert A. Heinlein, C. M. Kornbluth, Alfred Bester, and Robert BlochOf Worlds Beyond, by Lloyd Arthur Eshbach, ed.In Search of Wonder, by Damon Knight