As usual, Barnes & Noble’s more detailed SEC quarterly filing followed their Thursday morning earnings report, and it offers some additional details about their business. Perhaps most notably, the company forget to underscore that in their most important holiday quarter, they sold fewer books. Book sales fell $12.3 million (or 1.7 percent), “on lower sales of trade and juvenile titles, partially offset by strong sales of coloring books.” The continuing mess at BN.com — where they took a site that was not performing well and performed an extensive revamp that made it worse — brought site sales down $15.6 million […]