What will a five-year-old boy want to read?

I have read several articles recently that talk about how difficult it is to interest boys in reading, and gave elaborate suggestions on how to wet their appetite.  Now, there are no guarantees about what anybody else's boy wants to read, but this is what my five-year-old chose.  

Birds because he loves flying, and wants to understand everything possible about flying.  Comics...I don't know, but he loves them!  Although, I have decided to cut them up and just give him the ones I am willing to read and explain.