"Type in some text on the page, select it, and apply the paragraph style to it by selecting "Paragraph <p>" from the Block Format drop-down in the Style Application toolbar (indicated in Figure 6-5)."

The drop down list is found on the Formatting toolbar rather than the Style Application toolbar as stated.

The tip indicates that HTML server controls are not commonly used and won't appear in this book.

That is incorrect- on p.53 you actually do create an HTML server control as indicated in the third paragraph. It just stood out to me.

The sample C# (and VB for that matter) code I downloaded for example 2-1 does not work like the book implies. I had to add the if-else logic to the code to get the desired behavior. When I attempted to use the downloaded code it complained about the fact that those button's don't exist on the page. I ended up with:
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
lblFirstPageLoad.Text = DateTime.Now.ToString();
}
else
{
lblPostBackPageLoad.Text = DateTime.Now.ToString();
}
}
//protected void btnPartialUpdate_Click(object sender, EventArgs e)
//{
// lblPartialUpdate.Text = DateTime.Now.ToString();
//}
//protected void btnOtherPartialUpdate_Click(object sender, EventArgs e)
//{
// lblOtherPartialUpdate.Text = DateTime.Now.ToString();
//}

}

which works as desired.