Laura Martignon obtained a bachelor’s degree and a master’s degree in mathematics at Universidad Nacional de Colombia in Bogotà and a doctorate at the University of Tübingen. Since 2003, she has worked as Professor of Mathematics and Mathematical Education at the Ludwigsburg University of Education. She was one of the founding members of the ABC Center for Adaptive Behavior and Cognition, directed by Gerd Gigerenzer. Her main academic contributions have been in probabilistic reasoning and decision-making. She is best known for having conceptualised and defined fast-and-frugal trees for classification and decision-making, proving their fundamental properties, and creating a theoretical bridge from natural frequencies to fast-and-frugal heuristics for classification and decision-making.