The book is not a mere visitor's guide, it is also a brief aesthetic treatise on the history of painting, and it is in this facet of the book that you can, if possible, enjoy Dorsian prose more and better. It is not only an aid to move between works of art, but also to know how to look at them and enjoy them to the fullest. The book was renewed and republished on several occasions, it was expanded and deepened further in concepts of pictorial criticism that have been very interesting.
It is never too late to read a classic of art criticism. Tres horas en el Museo del Prado became a reference essay for art lovers. In this edition three new texts have been incorporated, published in different years of the author's life, unpublished in book format, which come to complete the route proposed by Eugenio D'Ors to visit the rooms of the Madrid museum.