Peter Koos was born in Ziar nad Hronom, Slovakia in 1980. He graduated in chemistry at the Slovak University of Technology in 2003, where he also received 4 years later his PhD. degree under supervision of Prof. Tibor Gracza. He spent one year at UJF in Grenoble working on total syntheses with Dr. A. E. Greene and Dr. Philippe Delair as a part of his PhD. program. After a two-years postdoctoral stay in Germany at FU Berlin with Prof. H. -U. Reissig, he moved then to the University of Cambridge in UK, where he spent almost 2 years working on flow chemistry with Prof. S. Ley. In 2014 he started his career as an research assistant at the STU in Bratislava.