Do I need to book ahead?

The question was:

I am going to be doing the Camino from SJPP from 21st September 2011 to Santiago (allowing myself 40 days) and I was wondering if it is essential to book accommodation in advance. Your comments on this would be appreciated as I’m not sure how far I will manage each day so don’t quite know where or when I will be at certain destinations. Any suggestions?? :?:

Read the good advice here.