I have found some very useful resources that have been very helpful as I begin my transition to Spain in September. Since legal issues are a challenge, these resources are handy:
You and the Law in Spain, David Searl
http://goo.gl/OG1cM
Living in Spain - The Essential Emigration Guide, Richard Ellis
http://goo.gl/s9khL
Living in Sunny Spain Made Easy: The Step-by-Step Guide to Settling in Spain, Sarah Rogers
http://goo.gl/ObVMJ
I specifically look for books with translated legal forms, step-by-step guides, and practical advice. I hope they help you.
What have you found that might help others?
-christopher