Hi, I couldn't find anything through Google, I suppose the search terms are too much to handle. The VS built-in help only explains <%, which is just embedded code. There is no mention of <%:

EDIT: My book says, that the only difference is that <%: returns a MvcHtmlString. Why do we need an extra symbol for <%: just to return something?

Thanks for any help! It would really help me to understand asp.net.