The mark consists of three identically sized rectangles, length equivalent to approximately 5 times the height, placed on top of each other with space equivalent to approximately 20% of the height of the rectangles in vertical distance in between each rectangle; the top and bottom rectangles being vertically aligned, the middle rectangle is staggered to the left of the top and bottom rectangles by a distance approximately equivalent to the height of the rectangles; each rectangle contains a vertical line running from the top to the bottom but without touching the edges; on the top and bottom rectangles the line is located on the far right side of the rectangle; on the middle rectangle, this line is located on the far left side of the rectangle; the phrase "books build brains" appears in lower case letters, each rectangle containing one word from the phrase, beginning with the word "books" in the top rectangle, the word "build" in the middle rectangle, and the word "brains" in the bottom rectangle. The entire mark is on a shaded background which is not claimed as a feature of the mark.