This book is about our connections to other people and the influence these networks exert over our lives. On the plus side, networks provide us with access to a multitude of resources: from aid and assistance to knowledge and norms. But at the same time, the relationships that link people (or not) are also responsible for a range of social ills. For example, who you are connected to will determine your likely success at school, whether you will go to university, your future career, the neighbourhood in which you will live, who you will marry and whether or not you will die young. Given their influence, the aim of the book is to show how we can take charge of our networks, in order to improve our chances of doing well in life, whatever our background. In particular, the book provides cutting-edge insights that readers can deploy to help make things better for themselves, their families and their wider communities. But this book also comes with a twist... better than just reading about networks is giving readers the opportunity to see for themselves how networks operate. The best way to do this is through active exploration. Interleaved throughout this book, therefore, is the option for readers to embark on a research-informed journey, where readers get to decide which paths to take, which decisions to make and how best to tackle the obstacles that lay in their path. All good preparation for how to think about networks back in the real world...