International Conference on Photoacoustic and Photothermal Phenomena ICPPP 20 took place in Moscow from July 7 to 12. The 20th, anniversary, сonference ICPPP-20 will be held in Russia for the first time as a token of appreciation of the world community of the Russian national school in photoacoustics, laser physics, and photonics. The international community of photoacoustic and photoacoustic spectroscopy connects people of various specialities and branches. Photothermics and photoacoustics unite thefields of laser physics, thermophysics, bio- and nanophotonics, materials science, laser medicine, theranostics, analytical and physical chemistry, thermal analysis, and non-destructive testing and evaluation. Our team presented 6 oral presentations. We are grateful to the ICPPP-20 organizing committee for the provided photos.