In listed series order:

1. The Hitchhiker's Guide to the Galaxy

2. The Restaurant at the End of the Universe

3. Life, the Univers and Everything

4. So long, and Thanks For All the Fish

5. Mostly Harmless

These books are in pretty decent condition. They all have some wear around edges and corners and a couple has spine creasing. There are some marks and/or discoloration around he outsides of the pages on a couple. The spines and hinges are in really good condition. There are no marks, tears or creases on the interior pages that I can find.