First, don't let the size and scope of this work scare you. It actually consists of several independent parts. Each will be used at its own appropriate time.
Different people learn in different ways.
Thus, the material in this book is presented several times on several levels to accommodate people's varying abilities, schedules and learning styles. At first, you will be asked only to approximate the Muskogee sounds. As you become more familiar with them, you will be guided closer to the actual sounds of the language. Everyone can learn all the necessary sounds in time. For those two or three really unusual sounds not common in English, there are permissible alternatives in modern Muskogee languages.