As a graphic designer, I've been using the Pantone PMS Matching system for over 15 years, and was excited to get the Pantone Color Bridge set. However, it was a 2005 edition, and the colors were no longer all "true," especially the CMYK mixes. I had a print job almost ruined because I used the CMYK mix on the bridge set. Upon seeing a printed proof of my job, I double-checked the ink setup on another CMYK chart, and realized the Bridge color was very wrong. I returned the set the next day, as this could have been a very costly mistake. On a positive note, Amazon made the return very easy.