In this interview, David Zierler, Oral Historian for AIP, interviews Richard Leapman, Senior Investigator in the National Institute for Biomedical Imaging and Bioengineering and Scientific Director of the intramural program. Leapman recounts his childhood in England and he describes his early and formative experience playing with an optical microscope. He describes his undergraduate work at Peterhouse College of Cambridge University and the influence of Aaron Klug in his physics education. Leapman explains his decision to remain at Cambridge for his Ph.D., and he describes his work in the Cavendish Laboratory and Klug's suggestion that he focus on inelastic scattering of electrons in electron microscopes to perform elemental microanalysis. He discusses his postdoctoral work at Oxford and the opportunity leading to his research at Cornell in the School of Applied Engineering Physics. Leapman explains his attraction to join the NIH upon learning that he would have access to an electron microscope and could work on electron energy-loss spectroscopy. He describes some of the biological implications of this work, including the ability to look at cells to detect elemental distributions inside subcellular organelles. Leapman discusses his many collaborations across the Institutes at the NIH and the development of NMR spectroscopy, and he describes the partnership between NIH and NIST that ensured his access to cutting-edge technology over the course of his career. He describes various aspects of his research that have direct clinical value to treating a variety of ailments, including asbestos exposure to coronavirus. Leapman describes his work at the chief of electron beam imaging and micro-spectroscopy and the numerous collaborations he has pursued beyond the NIH at both National Labs and university labs. He discusses some recent advances in his field, including new abilities to determine the 3D structure of proteins, and he explains his administrative duties as Scientific Director of the Institute. At the end of the interview, Leapman describes how the study of electrons has connected all of his research, and he discusses some of the challenges and opportunities he has confronted in his career as a physicist operating in a biologically-focused research environment.