A Bed for the Night is a great book for anyone interested in the ethical, financial, geographic, and legal challenges facing humanitarianism as a field and the concept behind intervention itself. It's a critical book, and not one that will encourage fluffly concepts of 'doing good' for the sake of 'helpless' people.

Reiff's book looks at critical decisions made in 'disaster' situations and the effects of these decisions on the people who whose lives are on the line (as opposed to those whose jobs are on the line). Humanitarian work is exceedingly complex in terms of political relations, money, and access. This book asks the tough questions and rattles the answers you may think are the right ones.

Very worthwhile.