2 – A. K. T. Assis, "Relational Mechanics" (Apeiron, Montreal, Canada, 1999), 285 pages, ISBN: 0968368921. Book in PDF format (3 Mb): http://www.ifi.unicamp.br/~assis/Relational-Mechanics.pdf. Errata. This book can also be ordered from Amazon: http://www.amazon.com/dp/0968368921 and at Barnes and Noble: http://www.barnesandnoble.com Reviews of this book: (A) T. E. Phipps Jr., Book Reviews: Relational Mechanics, Apeiron, Vol. 7, pp. 113-115 (2000); (B) A. E. Chubykalo, Book Reviews: Relational Mechanics, Apeiron, Vol. 7, p. 115 (2000); (C) T. E. Phipps Jr., Book Review: Relational Mechanics, Foundations of Physics, Vol. 30, pp. 171-173 (2000); (D) O. Costa de Beauregard, Notes de lecture: Relational Mechanics, Annales de la Fondation Louis de Broglie, Vol. 25, pp. 267-268 (2000); (E) T. E. Phipps Jr., Book Review: Relational Mechanics, Infinite Energy, Vol. 38, July-August 2001, pp. 67-70; (F) Marco Mamone Capria, Book Review: Relational Mechanics, Episteme, Vol. 3, p. 21 (2001). (G) A good discussion of Relational Mechanics in Spanish can be found in the book Inercia y Gravitacion – La Verdadera Influencia de los Astros, of J. G. Valverde (with the collaboration of J. Tramaglia and R. Rapacioli), (Fundacion Julio Palácios, Universidad Nacional Del Comahue, Argentina, 1999), ISBN: 9879770307.