The book explores how unused and under-used urban spaces - from grass verges, roundabouts, green spaces - have been made more visually interesting and more productive, by informal (and usually illegal) groups known as guerrilla gardeners . The book focuses on groups in the English Midlands but the work is set in a broad international context and reveals how and why they undertake this illegal activity. Guerrilla gardening is usually viewed uncritically and promoted as a worthwhile activity: this study provides a more balanced evaluation and focuses on its contribution in terms of local food production.