The problems in the mortgage market are routinely referred to as a "foreclosure crisis" because the level of defaults and foreclosures greatly exceed previous peak levels in the post-war era and, as a result, have drawn comparisons to the levels of distress experienced in the Great Depression. This book contains a review of the academic literature and industry press on the root causes of the current foreclosure crisis, data and analysis of trends in the market, and policy responses and recommended actions to mitigate the current crisis and help prevent similar crises from occurring in the future.