The 4th San Miniato Topical Seminar on “The Standard Model and Just Beyond” was a continuation of the meetings held in 1985, 1987 and 1991, and covered essentially similar topics. The program focused on reviews of the present experimental progress in precise electroweak and QCD tests, heavy flavour physics (particularly mixing) and the search for new particles. The emphasis was on the most recent results coming from the large statistics data samples collected at LEP, other e+e- machines, hadron colliders and fixed target experiments. The present status of the theory was reviewed and one session was dedicated to the discussion of future plans and physics issues.