Mikhail Yu. Gutkin is Leading Researcher at the Institute of Problems of Mechanical Engineering (Russian Academy of Sciences, St.Petersburg). Area of expertise: Nano- and micromechanics of plastic deformation in solids; Theory of defects in solids; Micromechanics of nanostructured materials, composites, and thin films; Strain gradient elasticity with application to defects; Boundary-value problems for defects in solids; Interface structures, plasticity, and diffusion. Publications: 3 monographs and more than 180 other scientific publications (papers, patents, reports, etc.) Ilya Ovid'ko is Head of Laboratory for Nanomechanics and Theory of Defects at Institute of Problems of Mechanical Engineering (Russian Academy of Sciences, St. Petersburg), Principal Editor of "Reviews on Advanced Materials Science" Journal and "Materials Physics and Mechanics" Journal, an organizer of nine (9) international conference (in particular, MRS and TMS Symposia, NATO conferences and workshops) on nanomaterials and nanotechnologies, and an author of four (4) books and about 140 papers in refereed journals in the area of defects and plastic deformation in nanostructured and conventional materials.