Vehicle Assembly Building, where the Apollo Moon rockets were assembled, and the Moon where they were sent

Dennis Merritt's eBook Store

Actually, there's only one book now, Adventure in Prolog. But I'll probably make the others into eBooks as well. All the books are for sale, but you get to pick the price starting at $2.

Adventure in Prolog -- The classic Prolog tutorial that uses the very first interactive computer games as a basis for learning the expressive power of Prolog.