1. 문자와 로고 http://designm.ag/design/24-clever-and-unique-logo-identitys/ 2. 문자의 변형 http://www.toxel.com/design/2010/03/03/20-unique-and-creative-logo-designs/ 3. 의미 http://humor.gekota.com/bbs/board.php?bo_table=B000001&wr_id=228635
4. 변화 http://jslee402.blog.me/10106608625