In "Green Eggs and Ham" are just the eggs green, or is the ham green too?

The actual words in the book only say "green eggs and ham". And being the key word. The picture on the cover shows a green ham and 2 green eggs so yes the ham is green.

https://en.wikipedia.org/wiki/File:Green_Eggs_and_Ham.jpg

Ta. I didn't learn to read with Dr Seuss, as they weren't around in the UK when I learned to read. The earliest books I can remember reading were by Enid Blyton and Beatrix Potter, before I even went to school. (At my first school, the library monitors stopped me taking a certain book out unless I could prove that I could read it - which I did, gaining freedom of choice thereafter. Can't remember what the book was, but the extract I had to read concerned some people flying over Adrianople in an airship. I found it boring, but I had made a POINT....) Having no television helped, and probably even more having a mother who was at teacher training college , I suppose.

While one may not always use the illustration to justify an interpretation, in this case the author IS the illustrator. Suess definitely intended the ham to be green too!

https://en.wikipedia.org/wiki/File:Green_Eggs_and_Ham.jpg