RESearch's Incredibly Strange Films is an exhaustive and intelligent look at a neglected subject: "weird," low-budget, and exploitation movies, and the folks who make them. This is basically the book that canonized cult directors like Frank Hennenlotter, Herschell Gordon Lewis, Russ Meyer, and Doris Wishman.
Celebrating--and analyzing--genres like Mondo, sexploitation, LSD films, and today's most recently fetishized genre of "educational films," the essays in this book are jubilant and informed. Also provided are a number of interviews with cheese film luminaries like Ted V. Mickels (The Corpse Grinders), Herschell Gordon Lewis (Wizard of Gore), and Larry Cohen (It's Alive!).
Essayists Joe Morton and now-infamous Boyd Rice provide terrific commentary. Haven't you always wanted to read Boyd Rice interviewing Herschell Gordon Lewis about gore and direct mail marketing?
Although the book is a bit out-of-date now (published in 1986), it is still a valuable source of information on these brilliantly bizarre, and often ignored, movies. Everyone from fans to film scholars should check this one out.