Library catalogs are good places to begin looking for books & e-books by keyword, author, title, or subject. These database do NOT search the content/text of books however.
Looking for a journal? Search by the title of the journal (not the title of the article).
These resources allow you to search across the complete text of lots of books. Some collections allow you to download, others only to view on your computer or moblile device. Books still in copyright may not be viewable--in this case, try going to the library catalogs (left) to locate a paper copy.
The books in Geisel Library are arranged by a system called Library of Congress Classification. The letters and numbers ("CALL NUMBERS") on the label applied to the spine of each book represent this classficiation. The call numbers are used to keep the books in order, arranged by subject and subarranged by author. The main area for anthropology books is on the sixth floor, in the area with call numbers beginning with the letters GN. The main area for psychology books is on the fifth floor, with call numbers that start with the letters BF.
For more information about how anthropology books are arranged within the GN and BF classifications, go to the offical Library of Congress page.