High energy photon-photon and electron-photon collisions

The advent of a next linear e(+/-)e(-) collider and back-scattered laser beams will allow the study of a vast array of high energy processes of the Standard Model through the fusion of real and virtual photons and other gauge bosons. As examples, I discuss virtual photon scattering gamma*gamma* --> X in the region dominated by BFKL hard Pomeron exchange and report the predicted cross sections at present and future e(+/-)e(-) colliders. I also discuss exclusive gamma gamma reactions in QCD as a measure of hadron distribution amplitudes and a new method for measuring the anomalous magnetic and quadrupole moments of the W and Z gauge bosons to high precision in polarized electron-photon collisions.