D.P.
Here is a link:
http://www.scholastic.com/parents/resources/article/book-...
At this age you would like to nurture a love for reading. Not just knowing how to but loving to. Tap into his interest. Young children love to read about things the like and know. Getting into series type books also helps as it makes them look forward to the next book. Books like Junie B Jones are perfect for that. I believe that's a first grade read.
Acquiring a booklist also helps. Your kid may enjoy and take pride in checking off books from his list. I have a list from a reading program my eldest daughter participated in. She was 6 then and going into 1st. Message me if you want a part of that list.
There are daily comprehension workbooks that are also great for young readers. Found ours locally for less than $4. It's kinda fun. You get to read the story, answer questions about it and even draw a picture related to the story. (Can you hear the excitement in my voice lol- sorry but I'm raising a self proclaimed nerd)
BTW, what level is your child? Maybe I can recommend some books. Here's one: http://www.powells.com/biblio?isbn=9780613099462 . Libraries usually carry this book and B & N has it for about $2