The International Conference "Thermocon'05" shall bring together scientists working in different disciplines of thermal theories of continua and discrete systems, such as Classical Irreversible Thermodynamics, Non-Equilibrium Thermodynamics, Rational Thermodynamics, Extended Thermodynamics, Mesoscopic Theories of Continua, GENERIC, Endoreversible Thermodynamics, Second Law Analysis, Finite Time Thermodynamics. There are invited lectures in the frame of a summerschool describing the state of the art of these partial disciplines, their connections and differences to each other. Contributing lectures present recent developments and new ideas in thermal theories and their applications to materials and complex systems also in fields beyond thermodynamics. Sessions for discussing results and background philosophies are in preparation.