Contrary to what some would have you believe, it DOES matter what they are reading! This little Bible is a great introduction to the major Biblical events, and it is easy enough and engaging enough to make a great early reader. The chapters are generally brief, so kids can feel a sense of 'completion' after a reasonably short session. Love it!
I purchased two of these as Christmas gifts. One for my 6 year old daughter and one for a co- worker's step son who is also in Kindergarten. It's great for this age as the print is large and the beginning readers can sound out most of the words unassisted.