The Budo Sho Shinshu was originally written by Daidoji Yuzan as a text book on warrior ethics for young people born into the warrior caste. It teaches the general tenets of bushido without going too far into any one fief's history or traditions, which is one of the reasons the original text was so widely accepted. The Code of the Warrior is a clear and easy to understand version of the Budo Sho Shinshu.
Anyone who wants to understand the Japanese frame of mind or gain insight into the warrior's soul should start with this book. Although the caste system has long been abolished, the principles of bushido still influence every facet of the Japanese way of thinking.
Today's warriors will find a wealth of information and guidance in the pages of this book.