Theoretical overview on Diboson production
  Precise measurements of weak vector bosons self couplings give a hint on the electroweak symmetry breaking sector. We first stress that present data from LEP and TEVATRON clearly indicate that weak bosons are self interacting. We then review the limits on the trilinear and quadrilinear couplings expected at LEP2, $e^+e^-$ linear colliders and LHC. 
P. Chiappetta