The Generation Girl Barbie book tie in that was originally included with the purchase of one of the dolls (or just mine). Book features some fraying on the edges, and the pages are noticeably aged (yellowing) but not severely so. The GG line of Barbie was an attempt to appeal to younger Millennials on the verge of the 2000s. Fairly simple stories of friendship, but pretty good for a Barbie story.