My 3-year-old son is learning sight words and loves the Biscuit series! The story is fun with a cute main character, which keeps his interest. I would recommend this series to anyone with a preschooler/kindergartner who is learning first words.
My daughter LOVES the biscuit books and this was her first. I find it pretty annoying that there are a million "woof woof"'s throughout these books, but sometimes I just skip saying them. I like that biscuit is trying to help the duck in this book.