Springer Science+Business Media is a global publishing company publishing books, e-books and peer-reviewed journals in science, technical and medical (STM) publishing. Springer also hosts a number of scientific databases, including SpringerLink, SpringerProtocols, and SpringerImages. Book publications include major reference works, textbooks, monographs and book series. Springer has more than 60 publishing houses, more than 5,000 employees and around 2,000 journals and publishes 6,500 new books each year. Springer has major offices in Berlin, Heidelberg, Dordrecht, and New York City.