The mark consists of two concentric circles that contain (a) the word "TESPIA", (b) the words "Tested Principles Innovative Advice", and (c) an xy chart. The background of the whole logo is white. The space between the circles contains the words "Tested Principles" in the upper half and "Innovative Advice" in the lower half. The chart is centered in the circles. The chart contains the x and y axes in black color. The chart contains four lines that start from the same point and then deviate upwards. The bottom line is dark blue. The next line upwards is dark turquoise. The next line upwards is light turquoise. The top line is green. All text is black. All text is written in the Verdana font.