An extensive spectrum of light non-strange qq states up to a mass of 2400 MeV has emerged from Crystal Barrel and PS172 data onpp → Resonance → A + B in 17 final states. These data are reviewed with detailed comments on the status of each resonance. For I = 0, C = +1, the spectrum is complete and very secure.Six 'extra' states are identified. Four of them have I = 0, C = +1 and spinparities predicted for glueballs. Their mass ratios agree closely with predictions from Lattice QCD calculations. However, branching ratios for decays are not flavour blind and require mixing with neighbouring qq states. This mixing remains controversial.