Superconducting cuprates : where do we stand ?

Almost 25 years after their discovery, the superconducting copper oxides " at high critical temperature " are still far from having revealed all their mysteries... Their study is the subject of a formidable research effort, which has stimulated the remarkable development of a wide variety of experimental techniques and led to new theoretical concepts, but also generated numerous controversies. This year's lectures will be divided into six sessions: each lecture will introduce the basic concepts and highlight the open questions, in close connection with the seminars which will present the current state of our experimental knowledge as well as some recent advances.