Springer is one of the oldest and leading international scientific publishing companies and ranks second in the world in the science, technology, and medicine sector (STM). Its publication spectrum includes biomedicine and life sciences, clinical and practice-oriented medicine, physics, technology, mathematics, geosciences, computer sciences, economics and humanities. It publishes 1,350 journals and over 3,500 new books every year, from 13 locations around the world.

ACM, the world’s largest educational and scientific computing society, delivers resources that advance computing as a science and a profession. ACM provides the computing field's premier Digital Library and serves its members and the computing profession with leading-edge publications, conferences, and career resources.

For more than 65 years, Elsevier has been an award-winning provider of leading-edge data and education resources to information professionals worldwide. By delivering world-class solutions both in print and online, we're proud to play an essential role in some of the most distinguished scientific and technology communities in existence today. From economics and public health to microbiology and genetics, we have a wide variety of books and ebooks online for you to choose from.