Before we dig into the introduction of this book, I'd like to define career transition. Many professionals believe that a career transition means moving from one industry to another, but a transition is simply a shift from one state of your career to another. In this book's context, a career transition is defined as any type of career movement, such as graduating from an undergraduate or graduate‐level program and shifting to your first professional job. It can also be defined as the shift of accepting a promotional or lateral opportunity at your current company, moving to a new industry, or choosing a lateral or promotional opportunity at a new company. Last but not least, a career transition can also be a mental transition from moving from being just another employee at your company to becoming a leader in your workplace.