The collection of essays dedicated to the 60th birthday of Kalevi Kull, Professor of Biosemiotics at the University of Tartu, comprises twenty innovative articles in biosemiotics and nearby fields. Contributions have grown out of authors' unpublished research materials, unconventional approaches or sketches of articles. The list of authors includes internationally renowned biosemioticians, Kalevi Kull's co-thinkers and students. Among topics shared by many articles are attention to the borders of biosemiotics while pointing to the connectedness of the subject matter of biosemiotics and the human cultural sphere, emphasis on the dialogic nature of academic theories as well as human lives, and focus on the identity of biosemiotics and its ethical implications. The collection includes a bibliography of Kalevi Kull's academic writings in English.