The subject of personal property law, long neglected, has attracted increasing attention in recent years. It is no exaggeration to say that it is claiming its rightful place in the legal literature. Many changes in the law have occurred since the last edition in 2002, so a very substantial measure of updating has been necessary. In addition, extensive additions have been made in the coverage of the book. The introduction to the subject in the opening chapter has been significantly enhanced so as to allow a fuller discussion of the nature of property. There is more material on money and on body parts as property. The discussion of possession has been expanded, particularly when it comes to constructive possession. There is an extended analytical treatment of bailment. Throughout the book there is now a fuller treatment of equity and there is also a fuller discussion of traA?cing. New material has been introduced on knowing receipt and dishonest assistance. Greater attention is paid to the disposition of equitable interests and to the equity of rescission. Security interests now receive a fuller treatment. A consequence of the expansion of the book is that the order of the material has been changed in parts and there are now eight chapters instead of seven. Although this fourth edition is somewhat longer than the third, the aim of the book, to encompass the vast subject of personal property law in an economical and readable form, has not changed.