Marcos Oliveira (1967) is a Portuguese illustrator graduated in Art History. He has started working as an illustrator, since 1994, specializing in scientific biologic illustration and in historical reconstruction.

Since 1998, he has been working as a freelance illustrator for the Institute of Nature Conservation of Portugal (ICNF), municipalities, NGOs, publishers and other companies and public institutions (Lisbon Oceanarium, Côa Valley Archaeological Park, BIORIA, LPN, CIBIO, etc.).

Marcos works with traditional illustration technics, preferably watercolors. Realism is the basis and the inspiration of all his work.