NOW NewsPress July 2022 France Info TV The pop art superheroes of Greg Guillemin, alias « Léon », take over the castle of Val View Video June 2022 Arts Magazine N° 142 The castle life of Greg « Léon » Guillemin Discover the magazine September 2021 GraffitiArt N° 60 Pop Art 2.0 Discover the magazine June 2021 Maison & Jardin Magazine N° 145 Art for « bigs » kids Discover the magazine April 2021 Arts Magazine N° 135 The geeks icons of Greg Léon Guillemin Discover the magazine September 2018 3K Magazine N°22 Greg Léon Guillemin, idol striker Discover the magazine March 2017 Architecture à vivre N° 41 Greg Léon Guillemin, Artist 3.0 Discover the magazine October 2015 Beaux Arts Magazine Exclusive cover Discover the magazine March 2013 Beaux Arts Magazine The quiet force Discover the magazine February 2017 Juxtapoz Greg Guillemin’s Secret Heroes View article November 2014 ShortList Secret Life Of Heroes Pop Art View article June 2014 Awwwards The Secret Life of Heroes. Pop Art Illustrations View article September 2015 Fubiz Greg Guillemin’s Secret Heroes Part II View article June 2016 étapes Le programme du Montreux Jazz Festival en 60 tableaux façon Pop Art View article January 2017 Le Parisien Greg «Léon» Guillemin encanaille les super-héros View article