The Future Internet Assembly 2012 was held in Aalborg, Denmark on May 10-12, 2012. The respective book by F. Alvarez, F. Cleary, P. Daras, J. Domingue, A. Galis, ..., B. Stiller, et al. (Edts.): "The Future Internet: From Promises to Reality" appeared in the Lecture Notes in Computer Science, Vol. 7281, Springer, Heidelberg, Germany, series under the ISBN 978-3-642-30240-4 as an Open Access publication.