The concept of truthmaking is attracting much attention in contemporary metaphysics. Helen Beebee and Julian Dodd have assembled a distinguished team to contribute brand new essays on the topic: they ask, among other things, how the truthmaker principle should be formulated, whether it is well motivated, whether it genuinely has the explanatory roles claimed for it, and whether more modest principles might serve just as well. This volume will be the starting point for future discussion and research.