Development resources for SharePoint 2013 development

Start: Set up the development environment for SharePoint 2013

How to: Set up an on-premises development environment for apps for SharePoint

Apps for SharePoint overview

Data access options for apps in SharePoint 2013

Authorization and authentication for apps in SharePoint 2013

*** SharePoint 2013 training for developers

Demo: Tour a Windows SharePoint Services 3.0 site

SharePoint Server 2013 Demo site