then definitely check out Mori Books 141 Route 101A Amherst NH (603 882-2665 or www.moribooks.com). This is an old fashioned used bookstore with volumes piled up on the floor and bookcases that stretch to the ceiling...tons of everything is in evidence. The children's book collection is especially delicious with a pronounced emphasis on old Stratemeyer Syndicate series like "Dave Dashaway" or "Don Sturdy". They've also got a nice selection of the old "Big little Books" (those seem hard to find, though I'm no collector) and an excellent biography-history section with a nice stack of the old Ballantine Books "Our Violent Century" series.
I myself grabbed off a copy of Leo p. Ribuffo's "The Old Christian Right" which devotes an entire chapter to the life and career of Massachusetts' own Native Son, William Dudley Pelley, screenwriter, fascist and spiritualist extraordinaire!
So believe me, this is a good used books, Richard Mori, the owner has his head on straight.