Going To Barnes&noble Wednesday...can Anyone Recommend Some Books On Composition/melodies/chord Progressions?

I will be making a trip to barnes and noble this wednesday, and am going to be looking at their books on music.

Was just wondering if anyone knew of any good books, reference/self help books on music composition, or chord progressions, or help with creating/writing melodies.

Probly will be getting more then one book, so if you have multiple suggestions, pls share them all with me

Thanks

What have you got so far?  Or are you just getting started?  I'm not sure I'd trust Barnes and Noble to have a great selection.  They generally have a giant foreign language section.  Shelves and shelves and shelves… of dictionaries.  But no books in foreign languages.  (:  That sort of thing…  They order what sells.  Not necessarily what is good.  

I'd google some good college music programs and see if you can find lists of books required for their courses alongside the course selections.  Or if there is a link to the school's online college bookstore that lets you browse all the titles that they have available for their students.  You can always get Barnes and Noble to order you something if they don't have it available, but I think they are likely to have 50 beginner guitar books and 100 Justin Beiber biographies, rather than a good selection of theory books.  

I'm working my way through Walter Piston's "Harmony" myself.  That was recommended by a few people here as a good starting point and a text that some people had used in their intro classes.  (:

I particularly LOVE the harmony book of Arnold Schoenberg "Harmony" (or "Harmonielehre", in German). It's very complete, and starts from Zero to Infinite!!! For a more concise, direct and effective approach of traditional harmony, I believe that Paul Hindemith's "Traditional Harmony" is a good choice as well. If you're looking for something more "modern", look vor Vincent Persichetti's "Harmony of century XX". I hope it helps^^