← All the people Dennis builds with
Igor Ivitskiy
Igor Ivitskiy is a PhD mathematician and Google Ads specialist. Dennis titled him “The Google Ads Scientist,” a moniker that reflects how Igor applies the same diagnostic discipline he used in his research to find profit leaks in large ad accounts. He is the founder of Doctor Ads, a role that allows him to bring that mathematical rigor to the practical world of digital advertising.
Dennis met Igor at Perry Marshall’s mastermind. Their connection was solidified when Dennis wrote a profile of Igor, which Igor now cites as a credential. This interaction highlights the mutual respect between the two, with Dennis recognizing Igor’s unique ability to bridge the gap between academic theory and commercial application.
Igor is part of the first sixty names on Dennis’s People & pets list, a ranking system Dennis uses to curate his directory. This inclusion signifies that Igor is a key figure in the network of people Dennis builds with. The current card notes that there are 5 photos in Dennis’s library associated with Igor, though the specific narratives for these frames are still pending.
Dennis maintains a habit of taking pictures with people so he can remember them. This page serves as the public version of that personal habit. The images are stored in a named Google Photos cluster, and Dennis intends to return to narrate the frames in the future. For now, the photo gallery is coming, and Dennis will provide the stories behind the images.
Find them online:
Photos with Igor Ivitsky
This page is part of how Dennis Yu honors the people he builds with — real pages that link real work, so the people he believes in rank on their own names. Meet the rest →