This book initially discusses the use of broomsticks, nails, wire scraps, foil, cheap switches, free batteries, broken telephones, bent rods, clothespins, and string in constructing prevention devices. Specific suggestions on doors consider construction, hardware, dead bolts, barricades, an antijimmy plate, peepholes, and chains, along with fake tone pads and security system labels. Devices to secure windows are described, including sticks in the sash channel, pegging the sashes, and wedges. The author advocates using passive devices, notably foil to simulate alarm system strips and a fake alarm box. The guide then moves to homemade electrical and electronic systems that individuals can build for under $10.00. Among the gadgets explained are a scare-away neon bulb, flashers, sensors, arming devices, and alarms. Recommendations for outside security address lighting, a tape recorder watchman, constructing a safe from a sewer pipe, and places to store valuable papers or cash for emergencies. The guide describes procedures for adding cosmetic and active devices to protect cars along with techniques to outwit attackers from taking credit cards, money, and keys. The book also reviews people and places that are particularly vulnerable to crime, such as women and children, the elderly, hotel rooms, garages, and vacations. It provides sources of supplies and additional information, a security checklist, a glossary, and an index. Numerous drawings accompany the text.