Albert Hirschman's possibilism originated from his work on development and democracy; at the same time, it offered tools for evaluating projects that Judith Tendler innovatively utilized in her professional work, where she interweaved theory and practice, methodology and ethics . Starting from observation in the field, comparisons, linkages, inverted sequences and unexpected consequences are really key elements in a type of evaluation that works toward improvement, "for a better world."
The enduring vitality of the thinking of these forerunners is what motivates the reconstruction of their intellectual trajectories: from the way of learning from the successes and failures of programs, to how to deal with such themes as complexity, mechanisms, uncertainty, change, that are at the core of current debates.
The book aims at showing both the relevance of practical work for the advancement of social theory, and the need for a theoretical attitude - based on a capacity of being surprised - for the strengthening of democratic professionalism and the attainment of sound results. It will constitute a basic reading for social scientists, decision-makers, policy implementers, evaluators and students.
