Anna Katarina "Kinna" Gieth Castellano (née Anna Katarina Gieth)[1] (born 21 June 1976), known as Kinna Gieth, is a Swedish writer. She was awarded the August Prize for children's and young adult literature in 1992 for her book I Miss You, I Miss You! (Jag saknar dig, jag saknar dig!), jointly with her co-author Peter Pohl. Aged only sixteen at the time, she is the youngest ever recipient of the August Prize,[2] one of Sweden's most prestigious literary prizes. The book is a novel for young adults. It is semi-autobiographical and inspired by her life following the death of her twin sister Jenny in a traffic accident at the age of thirteen.[3] [4] In the autumn of 1990 Gieth, then aged fourteen, wrote to her favourite author, the established writer Peter Pohl, wondering if he could help her writing a book about her grief and life following the death of her sister.[2] [5] The book has been translated into German, Danish, Norwegian, Dutch, Finnish, Icelandic, English, and Slovene. After the German translation was published, she also received the Deutscher Jugendliteraturpreis in 1995.[6] In 2011 her book was adapted into a motion picture, Jag saknar dig (I Miss You), directed by Anders Grönros.[7] [8]