In memory of Professor George Michael Sheldrick (1942-2025)

This letter of tribute honors the memory of Professor George Michael Sheldrick (1942–2025), a pioneering chemist whose work profoundly shaped the field of structural chemistry. He is best known for developing the SHELX program suite, which revolutionized crystal structure determination worldwide. With over 284,000 citations and an H-index of 113, his scientific legacy is truly remarkable.Professor Sheldrick received numerous prestigious awards, including the Leibniz Prize and a Fellowship of the Royal Society. In 2024, the George M. Sheldrick Prize was established in his name. Remembered as both a brilliant scientist and a compassionate mentor, he leaves behind a legacy marked by excellence and humanity.