Ivan Čukić is the author of "Functional Programming in C++" published by Manning.
He is one of the core developers of KDE, the largest free/libre open source C++ project.
He is also teaching modern C++ techniques and functional programming at the Faculty of Mathematics in Belgrade and has been using C++ for more than 20 years. He has been researching functional programming in C++ before and during his PhD studies, and uses the techniques in real-world projects.