During the last few years there has been a large number of new experimental discoveries of “exotic” hadrons which do not fit the standard quark model. The mesons among them cannot be constructed out of a quark-antiquark pair and the baryons cannot be constructed out of three quarks. Initially the new results came mostly from the $B$ factories, but in the last two years the LHCb experiment at CERN has taken the lead. LHCb discoveries of pentaquark-like baryons $P_c$ and the doubly-charmed baryon $\Xi_{cc}^{++}$ have given a major boost to theoretical interpretation of the exotic states and provided a firm basis for predictions of new ones, including a stable tetraquark. Theoretical ideas and developments include hadronic molecules, tightly bound tetraquarks and pentaquarks, diquark-antidiquark configurations, as well as significant progress in lattice QCD. In addition to the new developments in physics of exotic hadrons there have been several new interesting experimental results in flavor physics. If confirmed, they might signal physics beyond the Standard Model. The pace of progress in these fields is likely to be even faster in the next few years. The SCGP workshop will focus on these developments. The majority of participants will be contacted at the organizers’ initiative.