Sook Nyul Choi Related books Echoes of the White Giraffe Houghton Mifflin • 1993 Echoes of the White Giraffe Random House Childrens Books • 1995 Halmoni and the Picnic Houghton Mifflin • 1993 Year of Impossible Goodbyes Houghton Mifflin • 1991 Year of Impossible Goodbyes Yearling Books • 1991 Year of Impossible Goodbyes Houghton Mifflin Harcourt Publishing Company • 1991 Yunmi and Halmoni's Trip Houghton Mifflin • 1997