20 Biggest Mistakes Principals Make and How to Avoid Them is specifically designed for principals as a means of reflecting on their personal behaviour and experiences as principal. The mistakes reported in this book reflect a collection of conversations with teachers, administrators, and the author's own personal experiences as both a teacher and a principal. The scenarios concern mistakes that a principal can and should avoid, and suggests strategies for avoiding some of the mistakes other principals have made. 20 Biggest Mistakes Principals Make and How to Avoid Them divides these mistakes into six categories: People Skills, People, Principal, Job, Tasks, Personal Issues, and Fatal Attractions. Each of these scenarios is designed to illustrate the mistakes that can occur in each area.