Aside from introducing you to our sample project MyPhoto, this chapter was concerned with outlining Bootstrap 4, highlighting its features, and discussing how this new version of Bootstrap differs to the last major release (Bootstrap 3). The chapter provided an overview of how Bootstrap can assist developers in the layout, structuring, and styling of pages. Furthermore, we noted how Bootstrap provides access to the most important and widely used user interface controls through the form of components that can be integrated into a page with minimal effort. By providing an outline of Bootstrap, we hope that the framework's intrinsic value in assisting in the development of modern websites has become apparent to the reader. Furthermore, during the course of the wider discussion, we highlighted and explained some important concepts in web development, such as typographic units of measurement or the definition, purpose, and justification of the use of Content Delivery Networks. Last but not least, we detailed how to include Bootstrap and its dependencies inside an HTML document. This sets the scene for Chapter 2 , Making a Style Statement in which we will introduce you to the Bootstrap grid system by building a general layout for the first page of our sample project.