  To answer the very interesting questions raised by the discovery of neutrino
mass, an effective, coherent strategy is needed. To foster the development of
such a strategy, the American Physical Society's Divisions of Nuclear Physics
and of Particles and Fields, together with the Divisions of Astrophysics and
the Physics of Beams, have sponsored this yearlong Study on the Physics of
Neutrinos. The study has endeavored to identify the most important open
questions, to evaluate the physics reach of various proposed ways of answering
them, and to determine an effective, fruitful U.S. role within a global
experimental program. An important -- if challenging -- goal of the study has
been to achieve consensus regarding the future of neutrino physics.
