剧情简介：Get ready for the ultimate crash course in communicating and solving problems through simple pictures. Thirty-two thousand years ago, your many-times-great-grandparents Oog and Aag drew pictures on the wall of a cave. They had an innate need to communicate, but no written language. So they found an easy and natural way to share their thoughts and stories. Today, after so many ...(展开全部)
作者：Dan Roam
出版社：Portfolio
ISBN：9780399562990
