The 2011 International Symposium on Information Theory will take place July  31 – August 5, in Saint Petersburg, Russia, the Northern capital of the Russian  Federation.  Previously unpublished contributions from a broad range of topics  in information theory are solicited, including (but not limited to) the following  areas:  The Symposium is under the aegis of General Trustee   Academician Evgenii P. Velikhov.  Researchers working in emerging fields of information  theory or on novel applications of information theory are  especially encouraged to submit original findings. Submitted  papers should be of sufficient depth for review by experts in  the field.  Final papers will be limited to 5 pages in standard  IEEE conference format.  The paper submission deadline is  February 15, 2011,  at midnight, Eastern Time (New York,  USA). The deadline is firm and no extensions will be granted.  Notification of acceptance by May 1, 2011. Detailed  information on paper submission, technical program,  tutorials, travel, social programs, and travel grants will be  announced on the ISIT2011 website: www.isit2011.org.  Coding theory and practice Communication theory Compression Cryptography and data security Detection and estimation Information theory and statistics Network communication theory Multiple terminal information theory Pattern recognition and learning Quantum information theory Sequences and complexity Shannon theory Signal processing Source coding Vladimir Blinovsky IITP, Bolshoy Karetny, 19, Moscow, 127994, Russia +7 (926) 831-95-97 vblinovs@iitp.ru Alexander Kuleshov IITP, Bolshoy Karetny, 19, Moscow, 127994, Russia +7 (495) 650-42-25 kuleshov@iitp.ru Anthony Ephremides University of Maryland, USA College Park, MD 20742 +1 (301) 405-3641 tony@eng.umd.edu