This book sets out to introduce its readers to the leading themes of apologetics, presenting a basic understanding of its agendas and approaches. I have tried to make this book accessible, interesting, and useful, while giving pointers to more advanced resources that will allow you, the reader, to take things further in your own time. It is not comprehensive, so you will need to supplement it with more advanced and specialized texts. Nor is it committed to any particular school of apologetics. Rather than limiting itself to any one specific school or approach to apologetics, this work draws on their collective riches. It aims to encourage and equip its readers to develop an apologetic mindset, and explore further how to explain and commend the gospel to our culture. In many ways, the book’s approach mirrors that of C. S. Lewis (1898–1963), perhaps the greatest apologist of the twentieth century. It aims to help you get an idea of what the issues are and how Christians can respond to them. Like any introduction, it will leave you wanting to know more and go further. It cannot hope to answer all of your questions!