These books were always kept in a neat and orderly condition as a matter of strict studio policy. In other words, they always looked just like this. Tattoo Artist portfolios on top, Flash books and Piercing Portfolios underneath. Books were moved to behind the counter before the raid due to planned remodeling, not because of any perception of inappropriate content.
same wall later 
Note the placement of the counter by the as yet unpainted window (painted in late Dec 07, Jan 08) would allow anyone outside to see the labels on the piercing books which were permanently located on the far right under the counter, closest to the window.
Here are the windows after painting 
