Education, Teaching Aid and Training Content Design De Muros a Marcas Street Art Cathedra and Art Book by Paul Joshua Martinez Calderon De Muros a Marcas is an elective university course and art book created to teach art and design students about street art and its influence on contemporary design. The syllabus was developed with input from design professionals and covers historical and contemporary insights, practical projects and a final project across fifteen weekly classes. The art book measures 32 cm by 28 cm and combines hand-drawn illustrations made with alcohol-based markers and acrylic paints with digital illustrations. Slides and printable A4 templates support each class session.