Dear Colleague, this is the fourth circular of the Workshop DIFFRACTION 2008: International Workshop on Diffraction in High-Energy Physics, to be held in La Londe-les-Maures, France, September 9-14, 2008, web site http://www.cs.infn.it/diff2008. The number of persons who registered so far and asked to give a talk is surprisingly high this year and we have reasons to believe that it will increase further. This is, of course, good news, however it poses some organizational problems which we would like to face with in the most convenient way. For this reason, we ask registered people 1. to confirm their booking of the room at the Agelonde Congress Center by a down-payment of 100 Euro at the same bank account reserved for the payment of the fees (see the Workshop Web site), to be done within July 15; IN THE BANK TRANSFER THE NAME OF THE SENDER SHOULD BE CLEARLY IDENTIFIED. Moreover, we ask people wishing to give a talk 2. to confirm their intention and to make the title definite, in case it is presently classified as "to be announced". Forthcoming registrations after July 15 (and within the deadline of August 15) will be taken as fully confirmed only after the down-payment mentioned above. We remind you that the Workshop will start on Sept. 9 in the evening with the welcome reception and will finish on Sept. 14, with the lunch after the morning session. We refer to the previous circulars, available at the Web site, for detailed information about topics, conveners, fee, accommodation. Best regards, The Organizing Committee ############################################################### ADDRESS FOR CORRESPONDENCE TO LOCAL ORGANIZING COMMITTEE DIFFRACTION 2008 c/o Alessandro Papa Dipartimento di Fisica, Universita` della Calabria Ponte Bucci, cubo 31C I-87036 Arcavacata di Rende (Cosenza) Italy Phone: +39 0984 496015 (or 496018) Fax: +39 0984 494401 E-mail: diff2008@cs.infn.it or jsoffer@temple.edu For urgent communications after August 15, 2008 DIFFRACTION 2008 c/o E. Sauvan Phone: +33 491 82 72 57 Fax: +33 491 82 72 99