ABOUT DOUGLAS EDUCATION CENTER Established in 1904, Douglas Education Center (DEC) is a premiere career institution located in Monessen, PA. DEC creates an educational atmosphere that not only fosters the highest standards of excellence in all students, but also helps these students develop an awareness of social responsibility and ethical behavior. DEC offers programs in special make-up effects, digital film, illustration, fantasy art, graphic design and web, cosmetology, medical, and energy trades.