Digital advertising is fantastic, until it isn't. Unrealistic promises, mistakes, inconsistent reporting, and outright fraud plague this industry. A THIRTY YEAR OLD industry. Sort your life out, digital... you gots problems.

Inside the Black Box, by Bob Hoffman:

https://dl.bookfunnel.com/6kwmi0qlsq

Sources for current click through rates:

https://broadstreetads.com/successful-click-through-rate/

https://www.wordstream.com/blog/ws/2010/11/22/what-is-a-good-click-through-rate-for

https://www.linkedin.com/pulse/evolution-banner-ads-from-44-click-through-rates-todays-umer-masood/

ISBA article on missing ad dollars: https://www.isba.org.uk/article/time-change-and-transparency-programmatic-advertising