A Practitioner’s Guide to Cybersecurity Careers is a practical, mentor-led guide for professionals looking to move into cybersecurity without starting over . Drawing on 22 years of real-world experience across global technology and cybersecurity organisations, Tony Manzoni explains how cybersecurity careers actually work — from sales and go-to-market roles to technical and security engineering paths . The book cuts through hype, certification overload, and unrealistic promises to focus on what employers and hiring managers truly value. Readers will learn how cybersecurity differs from traditional tech careers, how organisations buy and manage security, and how risk shapes decisions at every level. The book provides clear guidance on choosing the right career path, positioning existing experience effectively, and building credibility using proven frameworks such as MEDDIC, MEDDPICC, and STAR . This book is ideal for sales professionals, IT and cloud practitioners, and mid-career professionals seeking a realistic, structured transition into cybersecurity. It is not a shortcut or a certification checklist — it is a grounded, experience-based guide to building a sustainable career in one of the world’s most in-demand fields.