For the football world championship in Germany, the WM2006, Joy visited all 12 hosting cities and presented his football stencils, the „WM-Tattoos“ on the local walls-of-fame.
From 2004 – 2006, Joy sprayed an extensive „heroes“ series, multilayer stencils on small canvases (24 x 30 cm) as a tribute to some modern age heroes.
After working with all known Graffiti techniques and even discovering some new areas of application, Joy published a practise book for Graffiti as an art-form, design and decoration in 2005 with the „Knaur Ratgeber Verlag“. As the only german practise book on graffiti, it quickly became a definitive book and Joy started to teach Graffiti in neighbourhoods, creativity seminars, at schools and adult education centers.
This stage in Joy´s Graffiti activities led to new techniques and cross-cultural combinations, enriching the spectrum of his artistic vocabulary for 2-dimensional artwork as well as for design applications and street-art happenings.