Thumb book 10 bear baby-baby's happinesses learn(develop a baby number cognition, contrast observation, reason logically judgment, logic thinking ability.) (Chinese edidion) Pinyin: mu zhi shu 10 zhi xiong bao bao ！ ！ bao bei kuai le xue ( pei yang bao bao shu zi ren zhi 、 dui bi guan cha 、 tui li pan duan 、 luo ji si wei neng li . ) - Hardcover