Hi.
Sorry I didn't realise you had posted a msg.I can't remember the exact names of the books,but they start with "FAA A&P..."They are proper study books distributed by the FAA.There is the general,a/f and pwrplt(3 off).As for the oral,it is just an extension of the questions in these books.Basically they are just trying to find out if you understand English and just didn't wing the theory exams.The oral goes for about 40 mins,and the inspector/examiner is not there to fail you.If you stuff up a question,he will just keep asking you more questions from his book related to the topic.
As for the prac,I had to work in the inspectors hangar doing any job he asked of me.Basically I was his lackey for the day,as I did everything from reading his hard to read and fuzzy manuals for ordering parts,to cleaning a/c windows,stripping a crashed helicopter,to soldering,to writing up a damage report for a stuffed prop and lots of tech logs sign offs for different jobs and there was something about having to practice writing a a supplementary certificate I think.Too long to remember,and I don't do that kind of work anyway.I was lucky in that I only had to work for this guy for one day,as I know of guys who did theirs in Hawaii,and had to work for three days,which included being a bag chucker on some of the cargo runs that guy did.
All in all,the A&Ps arenot too hard,you just have to apply yourself like any exam,and you'll be right.
I hope this helps.