The Level II CD is the audio of an actual class. This level of study covers the equation and what supplements are needed in order to move the chemistry of the body toward the perfect "healing" equation and in time to the "perfect " equation of health as per the RBTI teachings. Any student of the RBTI should have this CD in his/her library. Actual classes are offered for those that want to learn more. Read and study the "articles" on this website for additional information in regards to the RBTI.