How People Learn: Brain, Mind, Experience, and School is a freely readable version of a book published by the National Academy Press and the National Academy of Sciences.
(The book is for sale on Amazon, in an “Expanded Edition” for US$17.47, but a little searching of the NAP website finds the same edition also available for online reading, along with a companion book, entitled How People Learn: Bridging Research and Practice. Both of these versions are presented in NAP’s Open Book format, a full-text searchable online reading interface.)
I’ve started reading it, and it seems an excellent guide to many of the latest trends in learning research. Although it is heavily slanted towards K-12 education, much of the basic information will be applicable to educators of adults, even if only as contrasting examples.
(Via OLDaily, Stephen Downes‘s excellent Education newsletter.)