``Reviews and assessments of Canada's aid program have been numerous....not until the publication of David Morrison's Aid and Ebb Tide has there been a comprehensive review of its history, allowing a more fully informed assessment. The book is an important achievement, chronicling the evolution of Canada's aid program since its origins in support of the Colombo plan in 1950, to the end of the 20th century. It provides a level of details not previously captured, which will serve both students of aid as well as practitioners and analysts. It is a history long overdue, given the continued importance of aid in Canadian foreign policy efforts. It provides a particular vantage for reflections on new directions and prospects for Canadian aid program, as Canada heads into a new century of unquestionable levels of global poverty and inequity.'' -- Gauri Sreenivasan -- Canadian Journal of Development Studies