Text editor and proofreader since 1979, specialising in law texts, school and academic textbooks, and academic journal articles; marketing materials
Training facilitator in editing- and publishing-related skills since 1999
Facilitator of courses in Academic Writing and Academic Presentations to doctoral students at University of Antwerp
Teaching assistant at University of Antwerp 2014, 2015:  English proficiency; Advanced English Practice, Aspects of Writing and Speaking ((self-)editing skills to improve writing quality)
Mentor on the panels of the Professional Editors' Guild (South Africa), Canberra Society of Editors and Queensland Society of Editors (both members of IPEd, Australia) 

grammar, punctuation and all that jazz (MLA Publications, 2019)

Oxford English Grammar: The advanced guide (OUP, 2015)

Text Editing: A handbook for students and practitioners (UPAm Brussels, 2012) with K Van de Poel & WAM Carstens
Engleish, our Engleish: Common errors in South African English and how to resolve them (Pharos, 2009) 

For the Professional Editors' Guild, co-author of:
Consistency, consisency, consistency. The PEG Guide to House Style (2009) with J Bishop & P Schamberger
The Business of Editing (2012)
Marketing your professional services (2015) with J de Wet & L Marus