Get it here, via Elephant Journal's Bob Weisenberg.
(What am I up to reading the Gita? Why, rewriting and expanding the introduction to my translation-- the first into English-- of the 1911 Spiritist Manual by Bhima, that is, Francisco I. Madero, leader of Mexico's 1910 Revolution and President of Mexico from 1911-1913. Read about the current edition of my translation here. It is, as the title says, about Spiritism, but it also draws from the Bhagavad Gita and other works. Pretty chewy.)
P.S. Top 10 Reasons to Read the Gita
More about Madero's copy of and take on the Gita anon.