Don't have any names of books, but as an english student I get the Nursing times Journal, look up their website on google (or any other search engine) and look for articles on documentation, also ask other nurses and students in the clinical area, everyone has the same problems untill they get the knowledge. your nursing tutors should also give you numerous boaring hand outs about documentation that we all stuff away in the corner of the room untill that day when you first go to the clinical area and realise "ARGH I KNOW NOTHING ABOUT DOCUMENTATION" a word of advice in the mean time, If you don't write it down you havn't done it.
Chill jcmoo, we've all been there.
After trianing for 1 year I still am,
Good luck