Bob books first!: Mat. These books are designed for the earliest reader. Twelve books carefully organized in presentation of short vowels and single consonants. Read a sample. Bob books BOB Books Setis the perfect place for your beginning reader to start as it uses simple two and three letter words. Introduces the alphabet (except Q) with very basic three-letter words and short vowels. Add to history. BOB Books, SetPrintables BOB Books Setis the perfect place for your beginning reader to start a