A grand finale

With this album, the great cycle clot Asimov Foundation and he does it with talent, managing the feat, during a treasure hunt on a galactic scale, to immerse the reader in the middle of a very large part of his work, concluding not only the foundation but also the future history he imagined. References to his characters and worlds found in other works is a true delight.
But beyond a simple space adventure novel, Asimov gives us a nice reflection on humanity, the complexity of inter human relationships and the preservation of our planet and our species.
Furthermore, great scientific popularizer par excellence, Asimov gives us a course of astronomy more serious and more attractive.