I love saying ...
What's got him going on reading this last few weeks is the '13 Storey Treehouse' series by Andy Griffiths. I think I might love that man just a little bit (although having never met him, it is purely a You Help Boys Get Into Reading kind of love).
While there are only three books in the series so far and they take about 1/2 an hour to read it's not going to keep him going for long. But since the man that I have the You Help Boys Get Into Reading love for has written LOADS of books, I think we're now, as they say, cooking with gas.*
*I like to throw in a bit of KRudd for my Australian readers every now and then