Lovevery play guides - set of 6 - The Explorer - 9-10 months - The Thinker - 11-12 months - The Babbler - 13, 14, 15 months - The Pioneer - 16, 17, 18 months - The Realist - 19, 20, 21 months - The Companion - 22, 23, 24 months Learn valuable ways to help you make the most of these stages and milestones. *the Thinker play guide is only missing the cover page These are only normally available to the Lovevery kit subscribers.