This relatively small guide addresses one of the most important issues in buildings—controlling rain and ground water. The prose is succinct and to the point. The graphics are outstanding. The guide is divided into five sections: Principles, Window Installation, Risk Factors (including an Average Annual Rainfall Map), Details, and More Details. The graphics are aimed mostly at wood-framed and concrete-framed walls and window installation in various wall assemblies. This could be called a how-to for water management in buildings.