On this week's episode of Archinect Sessions we talk with Carlo Aiello, a Mexican-born, LA-based designer and founder of eVolo . Most of our readers are familiar with eVolo's (very) popular annual skyscraper competition and related series of books. Carlo, the founder of eVolo, is also the designer of the award-winning Parabola Chair  and the designer of the Kickstarter-success ESCALA , a 2-in-1 drawing tool combining the scale-ruler with an insertable fountain pen . In our conversation we track his progress from his studies at Columbia's GSAPP , to working for SOM  and Asymptote , to embarking as a self-made entrepreneur with a move west, to LA.