Editors’ choice for the thematic issue “Smart Composites” is the paper entitled “SDS-Modified Iron Oxide Magnetic Nanoparticles for Removing of Methylene Blue from Aqueous Solution” by K. E. Magomedov, A. S. Omelyanchik, S. A. Vorontsov, E. Čižmár, V. V. Rodionova, and E. V. Levada (Bulletin of the Russian Academy of Sciences: Physics, 2023, Volume 87, Issue 6, P. 720-727); for the thematic issue “Physics of Semiconductors” is the paper entitled “Self-Sustaining of the Conducting State and Bipolar Ionizing Gunn Domains in Pulse Avalanche Gallium Arsenide Diodes” by A. V. Rozhkhov, M. S. Ivanov, and P. B. Rodin (Bulletin of the Russian Academy of Sciences: Physics, 2023, Volume 87, Issue 6, P. 765-770).