How to Teach Phonics is a classic phonics teaching guide by Lida M Williams. Phonics is not a method of teaching reading, but it is a necessary part of every good, modern method. It is the key to word mastery, and word mastery is one of the first essentials in learning to read. A knowledge of the sounds of letters, and of the effect of the position of the letter upon its sound, is an essential means of mastering the mechanics of reading, and of enabling children to become independent readers.