Edwin Mathlener read Astronomy at the University of Utrecht from 1982 until 1986. Apart from working for a publishing house specialising in scientific publications, he has always busied himself with organising activities related to astronomy and aimed at popularising this science. Among other groups, he has been involved with the Dutch national society for meteorology and astronomy, Foundation ‘De Koepel’, Universum Foundation and Sonnenborgh Museum & Observatory. From 2009 he worked full-time for ‘De Koepel’ in Utrecht, but only until 2013 when this organisation sadly had to close down. Edwin was a member of the editorial team at the Zenit periodical for astronomy for 25 years, during which time he served as chief editor twice. For several years he was also the editor of the astronomical yearbook De Sterrengids and he is still involved today with the yearbook Sterren & Planeten. He is a volunteer at Sonnenborgh and gives courses and lectures at public observatories and for clubs. For a day job he’s gone back to working full-time for the publishing house mentioned above.