Teacher at Leiden Academic Art centre, known as LAK since 2001
Co-founder/director of  IS-projects, Leiden December 2007 July 2019
Co-founder StichtingEST art foundation, since September 2019

Selected exhibitions:
solo (s), duo (d) and group (g) catalogue *

Exhibitions:
2019
'Eagle Dragon Rhythm Section', Reuten Gallery, Amsterdam, NL (g)
Kunstroute Leiden, De Brandmeester, Leiden, NL (d)
Free Breathe, Museum St. Wendel, Wendel, DE (g)
New Modern: RNOP Melbourne: The Road Paintings, Five Walls, Melbourne, AU (g)
Interdiscursive Non-objective 3, XS Gallery, Institute of fine arts, Kielce, PL (g)
Hydrography VII, Galerie Agnes Raben, Vorden, NL (g)
RNOP Apeldoorn, ACEC, Apeldoorn, NL (g)
The world of icons, ILKO gallery, Uzhhorod city, Ukraine (g)
De Stijl and the Future Between Europe and China, Oct.Boxes Art Museum, Foshan, CN (g)
It is a small world after all, Curated by - Jan Maarten Voskuil, Sebastian Fath Contemporary, Mannheim, Germany (g)
The world of icons, Kiyv Non Objective, Art Center Dzyga, Lviv, Ukraine (g)
De Stijl and the Future Between Europe and China, United Art Museum, Wuhan, CN (g)
2018
Icons \ Shift, KNO.lab space in the Mikhail Bulgakov Museum, Kiev, UA (g)
Experience, Rhythm Section, Art Fair Tüyap, Istanbul. TR (g)
Hydrography VI, E9a, Freiburg, DE (g)
RNOP - New Work for a New System, Smith & Co Feisenbrau, Cincinnati OH, US (g)
RNOP San Francisco, The Great Highway Gallery, San Francisco, CA US* (g)
Destill, a survey of contemporary art, The Silo Room, Track One, Nashville, TN, US (g)
PHK18 #15: The great wall, MURALS Inc., Rotterdam, NL (g)
Boogie Woogie Rhythm Section, Gallery Reuten, Amsterdam, NL (g)*
Absolute, Boecker Contemporary, Heidelberg, DE (g)
Retrospect, Abstract Wall Painting I II III, ACEC, Apeldoorn, NL (g)**
BYO 10 Years IS-projects, Marktsteeg 10, Leiden, NL (g) 2017
Boogie Woogie Rhythm Section, galerie Karin Wimmer, Munich, DE (g)*
'Objectify', Tresle Gallery, New York, US (g)*
'EUROPA', RNPG at Bruch & Dallas, Cologne, DE (g)
Assemblage No.4 Van Doesburg Fanclub, Concrete Amsterdam, NL (g)
co-curator of Raakvlakken, Beelden in Leiden, Leiden, NL *
co-curator of Open Air Museum De Lakenhal: 100 years after De Stijl, Leiden, NL *
'In Het Licht Van De Stijl', LUMC Galerie, Leiden, NL (g)
'Oppler', Transmitter, New York, US (g)
Boogie Woogie Rhythm Section, galerie Reuten, Amsterdam, NL (g)
2016
Amsterdam Light Festival, Hortus Botanicus, Amsterdam, NL 2016 (g)
Boogie Woogie Rhythm Section, Arti et Amicitiae, Amsterdam, NL (g)
Indruk, Ars Aemula Natura, Leiden, NL (g) Galerie Tuinstaal, Leiden, NL (g)*
Galerie van den Berge, Goes, NL (d) Abstract Wall Painting II, ACEC, Apeldoorn, NL (g) Hydrography III, Lakaserna, Bad Nieuweschans, NL (g) 2015
Iemke van Dijk, Albert Roskam, Guido Winkler, Le petit Port, Leiden, NL (g)
'Therely Bare (Redux)', Murray State Unoversity, Murray KY, US (g)
'Reliefreduktiv 5', Galerie Bunsen/Götz, Nürnberg, DE (g)*
Therely Bare (Redux)', Zeitgeist Gallery, Nashville TN, US (g)
G U E S T S P O T @ THE REINSTITUTE, Baltimore, US (g)
ARTSCAPE A A F Baltimore, represented by Transmitter (NY), US (g)
'Therely bare (Redux)', IS-projects @ Platforms Project, Art Athina, Athens, GR (g)
Formeel 2015: Waterverven', Museum Waterland, Purmerend NL (g)
Reliefreduktiv 4 in Neuer Kunstverein, Aschaffenburg DE* (g) 2014
'Verf Water Papier', de Palmkas, Haarlem NL (g)
‘Doppler shift’, Art Centre New Jersey, Summit NJ (g) *
‘Relief Reduktive’, Kunstverein Speyer, Speyer DE (g) *
‘The beautiful formula syndicate’ Center of contemporary art, Tiblisi GE (g)
‘Auf den Punkt’, Raum2810, Bonn DE (g)
‘Streetview festival, expositie en veiling, PP44, Leiden NL (g)
'Toujours simple’, ParisCONCRET, Paris FR (g) *
‘To the point’, IS-projects, Leiden NL (g)
'Gegen die Wand', LW44 with Rhythm Section, München DE (g)

2013
Stop & Go 3-D, Women and Their Work, Austin TX (g)
Stop & Go 3-D, Texas State,  San Marcos TX (g)
Stop & Go 3-D, Aurora Picture Show, Houston TX (g)
Museum de Lakenhal in de Meelfabriek, Leiden NL (g)
Kunstroute Leiden, IS-projects.org, Leiden NL (d)
'Doppler', Parallel Art Space, New York US (g) *
'Hydrography II', De Vishal, Haarlem NL (g)
'Slow Freeze', Gemak, The Hague NL (g)
2012
'Stop and Go 3-D' Studio Quercus, Oakland, CA, US (g)
'Stop and Go 3-D' Exploratorium, San Francisco, CA, US, July 2012 (g)
'Raisonnement Circulaire', ParisCONCRET FR (g)
'Stop and Go 3-D' Museum of contemporary art Zagreb HR (g)
'Stop and Go 3-D' Trenutak.39 Zagreb HR (g)
'Doppler Stop' Trenutak.39 Zagreb HR (g) *
'Stop and Go 3-D' Fluctuating Images/General Public Berlin DE (g)
'Doppler Stop' Fluctuating Images/General Public Berlin DE (g) *'Stop and Go 3-D' IS-projects Leiden NL (g)
'Stop and Go 3-D' Kunst en Complex Rotterdam NL (g)
'Doppler Stop' Kunst en Complex Rotterdam NL (g) *
'Stop and Go 3-D' Amsterdam Grafisch Atelier Amsterdam NL (g)
'Doppler Stop' Amsterdam Grafisch Atelier Amsterdam NL (g) *
'Reliefreduktiv' Walkmeuhle Wiesbaden DE (g) *
'Islands of order in a Sea of Chaos' De Vishal Haarlem NL (g)
2011
'Unreminiscent Nature' Petit Port PP44 Leiden NL (g)
'Afdruk' Kadmium Delft NL (g)
'Inzoomen op Haagweg 4' Artcentre Haagweg 4 Leiden NL (g)
'Sugar Mountain' galerie Van den Berge Goes NL (g)
'BYO' IS-projects Leiden NL (g)
2010
'Langs grenzen van Abstractie' Haagse Kunstkring The Hague NL (g)
'Hydrography -abstracts in watercolor' RC de Ruimte IJmuiden NL (g)
'IS comes to SNO' SNO contemporary art projects Sydney AUS (s)
'Formeel 2010: aqurellen in Edam, Edam NL (g)
'Zichtbaar water' Haagse Kunstkring The Hague NL (g)
2009
'Qu'est-ce que le postformalisme?', ParisCONCRET, Paris FR (g)
MADI, Vierde Dimensie Plasmolen NL (g)
Oranda-e, Kunstcentrum Haagweg 4 Leiden NL (g) *
Rashomon' Le Petit Port Leiden NL (g)
2008
'Open Boek'  Scheltema, Leiden NL (g)
'Properties' IS projects, Leiden NL (g)
Vooraf & Toe, Leiden NL (s)
'Assemblage No. 3' SNO contemporary art projects, Sydney AUS (g)
2007
'Gevleugelden' Le petit Port galerie, Leiden NL (g)
'UND Jetzt' IS projects, Leiden NL (g)
2005
'Niet om te Zitten' galerie De Vierde Dimensie, Plasmolen NL (g)
'Kanalen' Le petit Port galerie, Leiden NL (s)
2004
Gorcums Museum, Gorinchem NL (g) *
galerie De Vierde Dimensie, Plasmolen NL (g)
2003
Catterline Arts Festival, Catterline UK (g)
2002
'Random' Kunstcentrum Haagweg 4, Leiden NL (g)
Free Manifesta; Museum fur Moderne Kunst, Frankfurt A.M. DE (g)
'Zomer in de Waag' De Waag Leiden NL (g)
2001
galerie De Vierde Dimensie, Plasmolen NL (d)

Commisions: Museum De lakenhal, Leiden, NL (permanent collection)