Jimmy Ytterberg completed his BS and MSc degree in Chemistry at the University of Stockholm in 1999, including a six-month study as an exchange student in the Biochemistry department at Imperial College, London, England. In 2001, he came to Cornell, where he developed his PhD thesis titled: Thylakoid proteome analysis of chloroplasts of Arabidopsis thaliana; Elucidation of thylakoid functions and its biogenesis machinery in the lab of Professor Klaas van Wijk. In order to carry out his dissertation work, he spent four months in Odense (Denmark) learning advanced mass spectrometry analysis of proteins. During his time at Cornell, Jimmy collaborated with many projects within and outside Cornell, identifying proteins by mass spectrometry. His skills with this technique earned him an invitation to speak at the 52nd American Society for Mass Spectrometry (ASMS) Conference in Nashville, TN in 2004. Today, as a post doc, Jimmy continues his search for new methods for protein/proteome characterization by mass spectrometry and their application in answering biological questions at UCLA.