When we first had the idea of organizing the International Conference on Localization, Interaction, and Transport Phenomena in Impure Metals we expected to bring together at most a hundred physicists. The fact that more than a hundred and fifty participated clearly shows that the topic of the meeting was of great interest to an important fraction of the solid state physics community. In fact, remembering that the localization problem is already a quarter of a century old, it is quite amazing to see how, during the last five years, new and very successful theoretical models emerged which were...