This book is about writing Windows Store apps using HTML, CSS, and JavaScript. Our primary focus will be on applying these web technologies within the Windows platform, where there are unique considerations, and not on exploring the details of those web technologies themselves. For the most part, I'm assuming that you're already at least somewhat conversant with these standards. We will cover some of the more salient areas like the CSS grid, which is central to app layout, but otherwise I trust that you're capable of finding appropriate references for most everything else. For Java Script specifically, I can recommend Rey Bango’s Required JavaScript Reading list, though I hope you’ll spend more time reading this book than others!

I'm also assuming that your interest in Windows has at least two basic motivations. One, you probably want to come up to speed as quickly as you can, perhaps to carve out a foothold in the Windows Store sooner rather than later. Toward that end, Chapter 2, “Quickstart,” gives you an immediate experience with the tools, APIs, and some core aspects of app development and the platform. On the other hand, you probably also want to make the best app you can, one that performs really well and that takes advantage of the full extent of the platform. Toward this end, I've also endeavored to make this book comprehensive, helping you at least be aware of what's possible and where optimizations can be made.

Let me make it clear, though, that my focus in this book is the Windows platform. I won’t talk much about third-party libraries, architectural considerations for app design, and development strategies and best practices. Some of these will come up from time to time, but mostly in passing.

Nevertheless, many insights have come from working directly with real-world developers on their real-world apps. As part of the Windows Ecosystem team, myself and my teammates have been on the front lines bringing those first apps to the Windows Store. This has involved writing bits of code for those apps and investigating bugs, along with conducting design, code, and performance reviews with members of the Windows engineering team. As such, one of my goals with this book is to make that deep understanding available to many more developers, including you!

Kraig Brockschmidt

Kraig Brockschmidt has worked with Microsoft since 1988, focusing primarily on helping developers through writing, education, public speaking, and direct engagement. Kraig is currently a Senior Program Manager in the Windows Ecosystem team working directly with key partners on building apps for Windows 8 and bringing knowledge gained in that experience to the wider developer community. His other books include Inside OLE (two editions), Mystic Microsoft, The Harmonium Handbook, and Finding Focus. His website is