If you bought the Bazzill Swatch box way-back-when, you need to buy the updates. I find that when I have a piece of Bazzill that's older, and I really like the color, if I match it with the swatches I can usually find it in my local store, have them order it or find it on-line. It's so much easier to find when I know the name of the color! The updates are a must-have.
This swatchbook is wonderful. So often I go to the store for some patterned paper or other irems & don't know if it will go together. This takes the guess work out of that. It's great.