Each of these five tutorials walks you through a different aspect of Force.com application building. Each tutorial takes approximately 20-30 minutes to complete, so in less than an hour you can get your first hands-on experience building a real solution -- a simple app called Mileage Tracker. You'll build and deploy the base application, and then extend it by adding additional business logic and creating a custom user interface. In doing so, you'll learn skills you can use to build your own on-demand business solution.