I nicely written book with engaging style and a good pace in its narration.
Fromm uses object relations theory and social psychology to investigate the nature of love and loving, with insights into varieties of love and loving, such as parental love, love of god, love of fellows, romantic love, self love or self regard.
I found it very interesting how he portrayed the varieties of love, society does tend to elevate some sorts above others and it can foster expectations of love that are unrealistic or downright unhealthy.
With luck, if clarity of this kind where more popular then there would be less murder-suicides by jilted lovers, obsessive behaviour and stalking or even parents failing to treat their children as paramount.
There have been criticisms of Fromm that he is too rationalist or pours cold water upon the idea of soul seering or earth shattering love affairs, classing such ideas as neurotic, I really think that that is a very superficial and unworthy reading of this book.
A great companion to Conditions of Love: The Philosophy of Intimacy
, a more philosophical musing on love or Falling in Love
another good psychological investigation of the topic.
Edit December 2008:
NB buy the PS edition, the PS section is almost as good as Erich Fromm: His Life and Work - A Pictorial Biography
, it incorporates so much about the author, his ideas and how they developed, that for a fan (and the power of this book is such that it could make you an instant fan of Fromm) it could rival the main presentation. Its also a great place to decide what to read next.