This book compiles the research into the subject of the Liechtenauer tradition (and its outliers) from the past three years. It is an excellent study guide for people who have learned the system from their instructors and who would like to put their knowledge into the context of the historical sources. Students with advanced skill sets and assistant instructors will find this book particularly valuable. Keith Farrell is one of the senior instructors of the Academy of Historical Arts, and teaches regularly at international events. Alex Bourdas is one of the instructors within the Academy of Historical Arts. His studies focus primarily on the Kunst des Fechtens.