Javier DeFelipe is a Research Professor at the Instituto Cajal (CSIC), Madrid, Spain. His main area of expertise lies in the microanatomy of the cerebral cortex. The frequent citation of his work in the scientific literature reflects the variety and excellence of his numerous contributions. Prof. DeFelipe is also fascinated by the link between the study of the brain and art and has been involved in organizing and curating numerous exhibitions around the world. He has written several articles, chapters and books on both this subject and the influence of Santiago Ramon y Cajal in modern neuroscience.