My 5-year-old daughter loves the Biscuit series of books and though we got the series last year, she still takes them off the shelf and reads them by herself and even to me, without being asked! Now, that's a winning series to me as through these two years since I began to teach her reading skills, we've gone through many different readers by various publishers (many of which I've reviewed in terms of how helpful/effective they've been) and only certain series have appealed to her. Being a visual learner, colorful and interesting illustrations are important, but at the same time they should not detract from the reading itself.
The Biscuit series of books has Biscuit the Dog go on simple yet fun adventures. Here Biscuit finds an adorable little duckling friend. The vocabulary is simple with familiar sight words that will motivate a young child who is just beginning to read. It helps to build confidence in reading whilst engaging a young reader's interest through the colorful illustrations and charming story. This is a wonderful and appealing series for early readers.