"How long have you not written a letter?" Technology advancement over the recent years has made communication enormously convenient, people are gradually forgetting the warmth of the handwritten letter and lost sight of the value of it. Yoo Hoo Taiwan combines the elements of Taiwan’s streets with its endemic animals and made a set of postage stamp themed creative books, which will take you to relive the classic touch of pen and paper, so that stamps are no longer just considered as a boring piece of paper, but a book that tells stories and delivers warmth.