The History of Economics Society welcomes nominations for the 2023 Joseph J. Spengler Prize for the best book in the history of economics. Books and scholarly monographs in the history of economics published in calendar years 2020 through 2022 are eligible. We especially encourage nominations from HES members and self-nominations by authors. Details about the prize and nomination process can be found at https://historyofeconomics.org/awards-and-honors/spengler-book-prize/ The deadline for nominations is 31 December 2022. All received nominations will be appraised by the selection committee of Till Düppe (chair), Laurie Bréban and Alexandra Hyard. -- Carlos Eduardo Suprinyak Secretary, History of Economics Society Associate Professor, The American University of Paris