26 Letters = 44 Sounds in English
The English language is made up of 26 letters, each making a sound. However, when we start combining letters together into various combinations, the English language is made up of 44 sounds. Those 44 sounds can then each have several ways to spell the sound. This is one of the main reasons English is difficult to learn and spelling is challenging for even native speakers.
This video clearly gives the visual letters as well as the pure sound for each phoneme.
This chart has each of the possible ways to spell each sound.