Jennifer Z. Paxton is a lecturer in anatomy at the University of Edinburgh and principal investigator of the Paxton Lab, a tissue engineering laboratory. She loves bringing the science of anatomy to a wider audience and working with primary schools to engage more children with the subject. She lives in Scotland.

Katy Wiedemann is an illustrator and tattoo artist. She works in ink and watercolor to explore the field of scientific illustration, particularly that of anatomy. She has a BFA in Illustration from the Rhode Island School of Design and an MA in Illustration from Edinburgh College of Art. She lives in Philadelphia.