These original empirical research essays in the psychology of perception, cognition, and language were written in honor of Henry and Lila Gleitman, two of the most prominent psychologists of our time. The essays range across fields foundational to cognitive science, including perception, attention, memory, and language, using formal, experimental, and neuroscientific approaches to issues of representation and learning. An introduction provides a historical perspective on the development of the field from the 1960s onward. The contributors have all been colleagues and students of the Gleitmans, and the collection celebrates their influence on the field of cognitive science. Contributors: Cynthia Fisher, Susan Goldin-Meadow, Katherine Hirsh-Pasek, John Jonides, Phillip Kellman, Michael Kelly, Donald S. Lamm, Barbara Landau, Jack Nachmias, Letitia Naigles, Elissa Newport, W. Gerrod Parrott, Daniel Reisberg, Robert A. Rescorla, Paul Rozin, John Sabini, Elizabeth Shipley, Thomas F. Shipley, John C. Trueswell.