The Curious About Phonics Learn-to-Read program can help your child master the basic phonics skills that are the building blocks for a lifetime of reading and learning. These twelve books introduce a carefully selected progression of letter sounds; there are repeated examples of the sounds being focused on, and high-frequency words (the, and) are called out, as are challenge words (rabbit, pancake). Challenge words are always referenced in the art. Also included with the set is a handy parent guide.