I think there may be a misunderstanding here. Half Price Books is actually a bookstore chain, not a restaurant. They specialize in second-hand books, music, movies, and games.
However, if I had to provide a summary introduction for a fictional restaurant with the same name (which doesn't exist), I would say:
"Welcome to Half Price Books Restaurant, where the focus is on quality meals without breaking the bank. This cozy eatery offers a diverse menu featuring international cuisine at affordable prices."
