Short review of the role of fluctuations in equilibrium many body systems; space and time correlations; fluctuation dissipation theorem. Phase transitions  phenomenology, examples, common properties, classification. Meanfield theories. Simple models, exact solutions, approximate methods. Scaling concept and universality of critical behaviour. Renormalization group, Wilson's expansion, real space RG. Quantum phase transitions, examples of quantumclassical correspondence. Percolation and fractals. Disorder, frustration and complex forms of ordering. Selforganized complex systems. Phase transitions in systems far from equilibrium

 Landau & Lifshitz: Statistical Physics (3rd edition), Elsevier, 2013
 H. E. Stanley: Introduction to phase transitions and critical phenomena, Oxford Univ. Press, 1971
 N. Goldenfeld: Lectures on phase transitions and the renormalization group, Westview press, 1992
 P. Pfeuty, G. Toulouse: Introduction to renormalisation group nad to critical phenomena, John Wiley and Sons, 1977
 J.P. Cardy: Scaling and renormalization in statistical physics, Cambridge Univ. Press, 1996
 ShangKeng Ma: Modern theory of critical phenomena, Westview press, 1976
