Nice set in good condition.  Slipcase is solid with just some age discoloration and a few small scuffs.  Books show minor shelf wear, particularly at the corners.  Binding are very tight and all pages are fully in tact.  Note that there is some writing and highlighting, but it was all done very nicely and does not interfere with the text.  I've included a few pics of the highlighting.  Please see all pics and email me if you have any questions.