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Tatyana Alexandrovna Kryukova (Figure 1), a Russian scientist and electrochemist, made important contributions to electroanalytical chemistry (Figure 2), particularly working in close collaboration with Professor Aleksandr Naumovich Frumkin, who was the greatest Russian scientist in the area of electrochemistry. Kryukova is particularly remembered for developing the theory of polarographic maxima, which were observed as a sharp increase in the current produced upon polarographic measurements under some conditions (Figure 3). These current peaks originated from tangential movements (rotation) of a mercury droplet electrode, then stimulating diffusion in the