This is the Bilingual Edition (English/Spanish) of this well known book about classical guitar technique built from concert guitarist David Russell's tips. From 1992 to 1998 David Russell was given an annual course in Seville. His last visit encouraged us to look back over the notes we have been accumulating since his first visit and the idea emerged of presenting a summary of the most outstanding ideas. Our aim is to use them as a basis for reflection and as the beginning of a deeper analysis of the technique of this famous concert performer.