Comentario: "The present volume remains, I believe, a valuable contribution to astronomy education, particularly because of its enormous breadth at a level of detail not really found elsewhere. For many an undergraduate course it should provide an ideal text, while for a wide range of other situations ¿ it will provide an excellent companion; even among the professional community, it will be a handy reference ¿ . It is nicely produced and at a very reasonable price." (David Stickland, The Observatory, Vol. 122 (1167), 2002)