Sharon Coan 
My S Words [PDF ebook] 

With this book, beginning readers will practice reading words that begin with the letter S! With bright, vivid images and clear, simple text, children will have an enjoyable reading experience as they learn to successfully read sight words and familiar vocabulary. New readers will enhance their basic phonemic recognition and pronunciation skills. This phonics book also includes a picture glossary and a list of activities to further practice using words that begin with the letter S.