First... let me show you guys my freaking new books ... which are pretty cool Me and my family bought some of them, I gotta tell you that these are way better than the "proof" books, perhaps they put more effort when the customers are "real". I was pretty happy when they arrived, so happy that I continued my second book, well, that and the fact that I have a little more time for the writing. We are in Tlaxcala, another state in Mexico... it's really cold and windy, but the panoramics are something wonderful. This is my real job, we are specialists in mechanical vibration analysis, so we go and check different machines, and we also give a technical training to analysts... I lied to you guys, I am not really an author, If I were, I would already be dead of starvation or something. The Tlaxcaltecas were an indigenous tribe in Mexico, they were paying tribute to the triple alliance ( Mexicas, Texcoco, and Tlacopan )... Indigenous tribes in Mexico ...