In this book, we have tried to make a case for using deep learning within R. Most deep learning power-users would shun R and go for other languages, such as Python. We, however, believe that R has a solid ecosystem of packages, and visualization and manipulation tools, that can be combined with deep learning libraries to create interesting projects. R also has a huge base of users without a software engineering background (perhaps you are one of them?), and those users are increasingly interested in applications that deep learning is making possible, but they do not have time to learn Python.