Mainly, the purpose of this work is to give the brass instrument player a more thorough understanding of how to improve the many factors which combine to make up his technique as a whole; also, to give the brass instrument player a more thorough understanding of the construction and history of his instrument, as well as a list of books which can be useful in developing specific phases of brass instrument playing. In other words, this book is intended to be a help to all brass instrument players who want to learn more about their instrument as well as to improve on it.