In Patchworks of Purpose Gerard Boychuk asserts that Canada does not have one social assistance system but rather ten variants that reflect the particular policy goals of each province. He argues that provincial assistance regimes have followed significantly distinct paths in their historical development even though they have been funded under the same federal cost-sharing arrangements. To examine patterns of social assistance provision specific to particular provinces, Boychuk develops a five-fold typology consisting of "residual," "market/family enforcement," "market performance," "conservative," and "redistributive" models. He uses this typology to compare development of assistance provision in the provinces, provincial responses to federal initiatives, and unique trajectories of assistance regimes. He concludes by surveying some of the broader implications of his findings for issues such as the development of national standards and the impact of globalization on social assistance provision in Canada. Patchworks of Purpose is an important book for students of social assistance and social policy as well as for scholars interested in Canadian public policy, Canadian federalism, and Canadian politics in general.