The first edition of this book was published in 1988, and this second edition appeared after six years. So, it may be time for the author to publish another new edition. I suppose however that most of the problems described in this edition remain to be challenging and that the book is still worth reading even in the early years of the 21st century, because the author treated the problems of the kind related to deep mysteries of nature. I read this book with great interest and learned much.
The author, Anthony J. Leggett, shared the 2003 Nobel Prize in Physics with two low-temperature theorists. Thus this book is also good to learn how wonderful insight one of Nobel-Physics-Prize winners has not only into the field of his specialty but also into all the fields of physics.