Mason Porter is an applied mathematician who is a University Lecturer and Tutor at the University of Oxford. He talks about his work (at time 0:09) being a mathematician (1:04) how mathematics compares with other disciplines (1:35) applied mathematics and pure mathematics (2:04) academic mathematics and industry mathematics (2:48) support in his professional life (3:56) professional credentials (5:32) dissemination of his results (6:15) promoting the subject (8:39) the public image of mathematics (10:12) the "leaky pipeline" where women are lost to mathematics careers (11:44) the value of role models for potential mathematicians (14:28) More information, worksheets and other resources for the undergraduate mathematics curriculum: www.beingamathematician.org