At University College London, one maths class in particular has all the students paying attention - to the teacher, at least, if not the lesson.
Armed with stunning good looks and a PhD in Mechanical Engineering, male model Pietro Boselli, 26, has been giving lectures at the university.
One of his students posted a photo of him on Facebook, garnering more than 1,500 likes and 300 shares.
According to ETOnline, Boselli was discovered by no less than Giorgio Armani when he was six. As Boselli is "addicted to training," this is what gives him his good looks and attention-grabbing body.
In addition to modelling, Boselli regularly publishes academic papers, with titles like "An Inverse Design Based Methodology for Rapid 3D Multi-Objective-Multidisciplinary Optimization of Axial Turbines."
For those who don't understand what that means, Boselli would probably be happy to clarify - he is a teacher after all.