The Luke Jackson one is good, but it is very much a guide to AS as is the Kenneth Hall one, although done from their POV of course
My son wouldn't read the Kenneth Hall one, he got as far as him mentioning he was religious and wouldn't read any further - if he was willing to believe in god (he's very much of the if you can't prove it, it doesn't exist mindset) then obviously anything he had to say was flawed, lol, but he does say he's 10 in it - so it might be worth a look at because he's the same age
I think the isolation was a big issue for my son before his diagnosis - he was aware of his difficulties, but without any real explanation for them it really affected his self-esteem
What's really helped with that is partly he knows about AS now (I didn't tell him for ages because I kept hoping he would get a firm diagnosis so that I could tell him he has... rather than be vague) and then of course he now has it in a nice black and white letter which he finds much easier to deal with, lol
but mostly, I met some other parents through a support group and he started socialising with other children with similar school issues, when he started secondary school there were other children who he was put into a support group with - again with similar issues and then he got a place in a youth group for teens in mainstream school with ASDs - knowing that it's not just him and that actually there are lots of other people like him has helped him so much
I remember how frustrating it was not to have the diagnosis and yes it has helped him knowing that it's not just that he's bad at things (what he used to say) but mostly I think it's knowing other children in a similar position that's helped him loads - because he's one of those really sociable but not very good at it kids, lol, and he now has people that get him
I'm just waffling now so I'll stop, lol