Joško Battestin (14 March 1918 – 21 September 2020) was a Slovene electrical engineer, inventor, physics teacher and author of a number of books on experiments in physics, many aimed at aiding the understanding of the subject by secondary school students.
[1] Amongst his publications is a book on graphology, expanding on the theories of Ludwig Klages that Battestin published in 2008 at the age of 91.
[2] In 1965 he won the Levstik Award for his book Mikroskop Pionir (The Pioneer Microscope).
[4] In September 2019, it was reported that Battestin, 101, lived in a care home for elderly residents.
[5] He died in Ljubljana on 21 September 2020 at the age of 102.