This achievement is for getting all bobbleheads. As stated in my "They're not dolls" achievement guide, "This achievement is for getting 10 bobbleheads. Here is a guide for this achievement that is both video and picture/text. Hope it helps!
http://www.gosunoob.com/fallout-4/bobblehead-locations/ and if that is not quite your cup of tea, here is a 2nd video