books.google.com - This volume is a collection of all papers published in Volume One of the journal "Mathematical Cognition". The aim of the journal is to provide a forum for explorations of how we understand mathematics and how we acquire and use mathematical concepts. The journal encourages an interdisciplinary approach...http://books.google.com/books/about/Mathematical_Cognition.html?id=eK4egLfRgGkC&utm_source=gb-gplus-shareMathematical Cognition
