Professor Jonathan Sessler is the 2021 recipient of the Ronald Breslow Award for Achievement in Biomimetic Chemistry, sponsored by the Ronald Breslow Award Endowment. The award, administered by the American Chemical Society, recognizes outstanding contributions to the field of biomimetic chemistry. Sessler will be honored at an awards ceremony in March 2021, in conjunction with the ACS 2021 Spring National Meeting in San Antonio, Texas.