Ready to roll

One week to go, bike fixed including new brake pads and extra water bottle.
Still to buy bike shoes and bits and pieces.
What book to take? it's got to be light (weight), not too intellectually challenging after a hard day's ride, capable of being read in small chunks.
I think I am as fit as I am going to be this time round so I will probably take it easy this last week, just concentrate on the last minute bits and bobs.
Buen camino!