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O'Reilly Media. Used - Very Good. Very Good condition. 2nd edition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner’s name, short gifter’s inscription or light stamp. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included.

O'Reilly Media. Used - Good. Good condition. 2nd edition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.

paperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book.