Vanguard of vigil information bread he is the author of several other books, functional art, introduction to visualization and the truthful art, data charts and mask medications in his latest book over there, and he will be signing copies afterwards. Getting smarter about vigil information. So thats the topic of tonight. Thank you. [applause]. Thank you for being here tonight and thank you again for the Northeastern University for having me. This is the third time that i make a presentation at this university. I must feel like home. I would like to begin with a little bit of housekeeping. The first think is, i would like to ask you to give an applause to the students who have signed this beautiful poster. [applause]. Their names, i will mispronounce them. Thank you so much for hanging this beautiful poster. Absolutely like it. I think i like it even better on the book cover but anyway. [laughter]. Or housekeeping, if youre interested in the topic and you find interesting. It you find i