“…5 It should be noted that, since late 2020, Jackson has been actively engaging with Tektology, as well as Bogdanov's earlier works (Bogdanov, 1904(Bogdanov, -1906(Bogdanov, , 1913, which have recently been translated into English in a Historical Materialism book series published by Brill. Jackson has given public talks and seminars on this work, and has published several blog posts on Bogdanov's legacy, where he has identified Bogdanov as a significant predecessor to critical systems thinking (Jackson, 2020(Jackson, , 2021a(Jackson, , 2021b(Jackson, , 2021c). Jackson's contribution to this special issue are two intriguing articles on Bogdanov's ideas and their relevance to the unity of contemporary systems thinking (Jackson, 2023a(Jackson, , 2023b.…”