Prof. Toth is an internationally known personality of the mechanics and materials scientific community since about 1990. He earned his high recognition through his broad knowledge in both mechanics and materials which permits him to make the bridge between these two disciplines. His high standard interdisciplinary activity made him an ideal collaborator in the best laboratories of several countries where he spent long periods. Established now in France, his original scientific activity attracts many excellent foreign scientists for joint research. The recent expertise of Prof. Toth is in the field of experiments and mechanical modeling of textures and microstructures of SPD materials, especially on quantitative modeling of grain refinement. Prof. Toth published 185 refereed papers, his h factor is 47. He founded two laboratories, the laboratory ‘LEM3’ in 2010 counting 160 persons, then the Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures ('DAMAS' – 80 researchers) in 2012 of which he is currently the director. Prof. Toth is Chairman of the next ICSMA Conference (Int. Conf. on Strength of Materials), June 26 – July 1, 2022, Metz, France, and also the ICOTOM20 Conference (Textures of Materials), June 26-30, 2023, Metz, France.