David Houle, "Entering the Shift Age: The End of the Information Age and the New Era of Transformation" 2013 | pages: 304 | ISBN: 1402272170 | EPUB | 1,2 mb
Prof. Martha J. Macri Ph.D., "The New Catalog of Maya Hieroglyphs, Volume One: The Classic Period Inscriptions (Volume 247) " English | ISBN: 0806134976 | 2003 | 480 pages | PDF | 30 MB
Prof. Martha J. Macri Ph.D., "The New Catalog of Maya Hieroglyphs, Volume Two: Codical Texts (Volume 264) Ed 2" English | ISBN: 0806140712 | 2009 | 320 pages | PDF | 19 MB