%O Proceedings of the VII Granada Seminar on Computational Physics, 2-7 September 2002, Granada, Spain 
%V 661
%I American Institute of Physics
%T Introduction to complex networks
%P 17-23
%B Modeling of complex systems: seventh Granada lectures
%R 10.1063/1.1571286
%K PACS: 89.75.Hc Networks and genealogical trees
%A Guido Caldarelli
%D 2003
%L eprints1192
%E Pedro L. Garrido
%E Joaqu?n Marro
%X We present here an introduction to the ideas and models that physicist developed in order to describe the graph or network structure in a variety of different systems. Firstly we give a very basic list of definition that can be of some help in approaching this field. After that we present a brief review of the state of art for the models. ? 2003 American Institute of Physics