For those of us who have spent most of our careers building business applications, the prospect of creating an e-commerce storefront can be quite daunting. Not only do you have to deal with calculating tax, estimating shipping and accepting payments, but employees need a way to manage products, discounts and marketing content. Thankfully, there's an open source e-commerce solution written in Microsoft ASP.NET MVC named nopCommerce that provides all this functionality and much more. I was so impressed by both the functionality and the underlying architecture that I've created a presentation which I believe will serve as a great introduction to MVC as well as a tutorial on developing custom storefronts using nopCommerce. We start off with a brief overview of basic MVC concepts accompanied by examples within the nopCommerce code. This includes strongly typed Razor views, HTML helpers, jQuery ajax calls, and fluent validation. Once everyone understands how the website works, we dive into the infrastructure by introducing WCF services, using a generic repository with Entity Framework(EF4) and LINQ, as well as Dependency Injection (DI) with Automapper.