the normal effects of time on an unused book that has been protected. the book may have been opened and read, but there are no defects to the book, jacket or pages.
near fine: used book that is almost but not quite in fine condition, shows some small signs of wear or slight shelf wear - but no tears.
very good: used book that is at the high end of good but not quite fine. the book might have a lightly bumped cover corner or shelf wear. the dust jacket might be a bit rubbed along its edges and might have a few tiny edge chips.
good: used book that is complete, sound, 