This volume is a collection of seminars and lectures Donald Meltzer gave to the Psychoanalytic Group of Barcelona under Dr Leon Grinberg, and later Dr Benito Lopez, during his visit to Barcelona. The clinical case studies outlined in the book address with typical variety Meltzer's thoughts on clinical work with children and adults, and the numerous issues involved therein, including depression, jealousy, delusional omnipotence and perversion.'The content of the book, in which all of the stable core of the group has participated, covers everything I know, think I know or wish I knew. The clinical seminars, punctuated by small off-the-cuff lectures, and coupled with a very receptive atmosphere, allowed me to expand and learn a lot.'- Donald Meltzer.