"The Teachings of Don Carlos" is a book whose main objective is to provide, through exercises and explanations, a way of putting into practice many of the surprising proposals contained in the work of Carlos Castaneda. It is directed principally to those readers who, in spite of having a great interest in Castaneda`s work, have not found a way to apply "the teachings" to the context of their everyday life, so far from those solitary and mysterious places which he narrates to us through his books. Regardless of how strange the world of don Juan-style sorcery may seem to us, we have discovered a notable confluence between the content of Castaneda`s proposals and the vision of the indigenous mesoamericans past and present, which could well prove applicable and very beneficial for modern man and society which, being in a constant state of conflict, no doubt requires a fresh perspective for renewal and exploration of healthier ways of living and being. After having worked for more than twelve years in the practical application of the principals, techniques, and proposals contained in Castaneda`s work, in my own person as well as those who have participated in the work groups which I have promoted and coordinated, we offer this work as a testimony to the results we have obtained. It is not our purpose to establish an ultimate truth in relation to the mysteries set forth by Castaneda, but to simply indicate the way in which we have approached them and show how, upon carrying out these principals, we have seen our own lives, and the lives of those who have participated with us, change substantially. At the same time, we seek to share our experience through 77 precisely detailed exercises, which any interested reader can put into practice and experience for himself the access to the "separate reality" spoken of in the work of Castaneda. Another of the primary antecedents of this work is found in the author`s experience of living and working in indigenous communities of toltec descent, in particular the nahuas and huicholes, from where were derived many of these applications which, in combination with those resulting from the living study of the work of Castaneda, have made up the content of our courses and workshops, as well as that of the present work. "The Teachings of don Carlos" is not intended to be a simple repetition of the ideas and concepts contained in the work of Castaneda, but rather it provides a specific method whereby such concepts may be applied within a context closer to that of the average person. Therefore, the techniques presented for practical application in such areas as, "stalking", "the art of dreaming", "the quasi memories of the other self", "stopping the internal dialogue", among others, are - in many cases - a more detailed description of practices mentioned only superficially by Castaneda, while others are completely original exercises which, nevertheless, share the same sustaining principles as the donjuanist teachings and which lead to similar results. More than a book of analysis or speculation, "The Teachings of don Carlos" is a book having to do with practical application which treats the "warrior`s" way as a real alternative to our way of living, which can be experienced by anyone who has sufficient interest, without the need of anyone to assist him. The work is divided into three parts that include an introduction, ten chapters and an appendix. The first part is a general explanation of the basic concepts on which are based the practices of the warrior`s on don Juan`s world, related to us by Castaneda. In the following two sections, which compose the heart of the work, are found more detailed explanations and practical exercises in the fundamental areas of "The Teachings of don Carlos". The second part is entitled "The special handling of ordinary reality" and it refers to that part of "the teachings" which take place in ordinary everyday reality but which have the capacity to transform it into a magical experience. The third is termed "The access to the separate reality" and is comprised of the practices for "the left side" that permit the practitioner to enter into states of non-ordinary reality, which reveal through the unsuspected possibilities of awareness, the existence of a "separate reality" in the world and a hidden form of awareness in each one of us called "the awareness of the other self". At the end are included, in addition to a bibliography, two glossaries of classified techniques. The first of these contains all those found in the eight works of Carlos Castaneda (up to 1990), mentioning the book and page number to aid in finding a specific technique. The second contains all the techniques found in this book. For further reference a general index of the present work has been added at the very end.