Jules Coenen started his career drawing comics for the Dutch Disney production in the mid-1970s. He illustrated among others stories with 'Donald Duck', 'Brer Rabbit', 'Big Bad Wolf' and 'Grandma Duck', as well as several illustrations for Donald Duck and Mickey Maandblad. He also inked the work of other artists, a job that eventually became his main occupation. Inspired by the departure of Daan Jippes, he left for the USA in 1980. There, he drew and inked Disney stories and illustrations for publisher Al White. He also did inking work for the Walt Disney Studios, among others the 'Donald Duck' daily. In addition, he continued to ink for the Dutch Donald Duck. Around 2000, he got less assignments because computers took over a lot of the work. He managed to make a living for a couple of years, but in 2004, he decided to move back to Holland. Sadly, he died two days after his return.