Think Julia is available under the Creative Commons Attribution-NonCommercial 3.0 Unported License. The authors maintain an online version at https://benlauwens.github.io/ThinkJulia.jl/latest/book.html Ben Lauwens is a Professor of Mathematics at Royal Military Academy (RMA Belgium). He has a PhD in Engineering and Master’s degrees from KU Leuven and RMA and Bachelor’s degree from RMA. Allen Downe