The Boxcar Children series is very good for that age. Also, the Magic Tree House sets. Those are addictive.

>Hi everybody,
>
>My son, who is 7 years old, started to like reading. Yesterday evening he surprised me a little bit by finishing "The Wonderful Wizard of Oz" in 2 evenings (about 1h.+ reading).
>
>I'd like to come to the library this Sunday with a list of good children's books. I'm not sure what books to take, so they have not very complex language and be interesting for a child.
>
>From my childhood I remember:
>
>Daniel Defo (?) "Robinson Crusoe" (?)
>? "Peter Pan"
>J. Swift (?) "Hulliver's Adventures" (?)
>
>A. Lindgren books
>
>"Nil's travellers with wild geese', (?)
>etc.
>
>May be you can help me to come up with a list, so it would be easier for me to pick the books...
>
>Thanks in advance.