This book is written for three different groups of people:
Students or computer hobbyists interested in software testing as a full-time job, internship, or co-op. Read this book before your interview or before your first day on the job to really impress your new boss.
Career changers wanting to move from their field of expertise into the software industry. There are lots of opportunities for non-software experts to apply their knowledge to software testing. For example, a flight instructor could test a flight simulator game, an accountant could test tax preparation software, or a teacher could test a new child education program.
Programmers, software project managers, and other people who make up a software development team who want to improve their knowledge and understanding of what software testing is all about.