The Sunshine Series offers collections of books - both fiction and nonfiction. There are a variety of classroom collections also available. You might be able to get the Wright Group to send samples.

The "Emergent Level" books have minimal words with a repetitious structure, heavily supported with illustrations. They are often humorous. Most important - they are "good reads." For example, a book I recall from this type of literature is "Shopping." The pictures show a child with an adult and a shopping cart going through a store. The text corresponds to each item added to the cart: "The bread." "The rice." "The beans." At the conclusion, the cart tips with the text being, "The mess."

As I understand it, the Wright Group materials came out of the literacy research of New Zealand - readers become readers by reading.

It is a bit disheartening to see the Wright Group has been gobbled up by McGraw Hill.

Scholastic is a good source for library collections.

As to specific books, Arnold Lobel(Frog and Toad series) and Else Minarik(Little Bear) are two authors I enjoy.