I live in Canada, but throughout Canada AND THE US, lies a damn good bookstore knows as chapters, I found that maya fundimenals, when I took a glance at it my first words were "This is easy, though it would be an excellent resource for beginners".

Anyway, the website for chapters is

https://www.chapters.ca (I forgotton the us link, but there should be a regional link somewhere through out that site, but they DO take credit cards or cheques I beleive).