Crystal Lake Memories: The Complete History of Friday The 13th (2006) by Peter M. Bracke. Seemingly a bit more well received than Grove's written history (at least based on the Amazon reviews), Bracke's effort includes interviews, photos, rare archival documents and production materials. Also includes a foreward by Sean S. Cunningham!
The Nightmares on Elm Street: A Novel (Contains "Part 4: The Dream Master" and "Part 5: The Dream Child") by Joseph Locke http://www.amazon.com/dp/0312917643/ref=cm_sw_r_pi_dp_Mgt7tb1GWREXN
Mother's Day (Tales from Camp Crystal Lake #1) by Eric Morse http://www.amazon.com/dp/0425142922/ref=cm_sw_r_pi_dp_qaltxb06AC5RK