Higher Expenses Trim Barnes Noble Profits  NEW YORK (Reuters) - Barnes   Noble Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=BKS.N target=/stocks/quickinfo/fullquote"&gt;BKS.N&lt;/A&gt;, the  leading U.S. bookseller, on Monday said quarterly profit fell  due to higher expenses and soft demand for titles in its  bestseller category.