There are days (many of them) when Jacob's reading habits strike me as, well, totally weird. Maybe it's just because its him, as opposed to me, but one day he'll be reading Harry Potter, or The Lord of the Rings (yes, really), or Summerland (highly recommended) or Sherlock Holmes (yes, really), or some other book really written with the teenage audience (or older) in mind, and the next he's reading Horrible Harry, or Geronimo Stilton, or something written for, well, eight-year olds. For some reason, I expect him to keep reading the more mature stuff, instead of bouncing back and forth. I don't know why, he is only eight.
I'd swear when I was a kid my reading progression was a lot more linear (and with a lot more Richie Rich comic books).