**Note - the second photograph is of a "VERY GOOD" item***
Very Good: No damage, may have address label. Almost like new.
Good = Good condition. There may be some of the print removed from the cover if label removed. Otherwise very good.
Fair: There may be some creasing of other light damage to corners or edge of covers.
Acceptable: Pages wavy due to water damage.
Again, these are all very usable and will last for many more years if treated well. The binding is tight on all of them - no broken spines!
I can supply photographs of any individual issue, and a detailed condition report.