George Rozvany has kindly made his two books on Corporate Tax Ethics available as free downloads to MWM readers.
https://staging-mwold.kinsta.cloud/george-rozvany-living-in-the-shadows-of-the-big-4-and-the-art-of-sudden-reappearance/
https://staging-mwold.kinsta.cloud/the-problem-with-pwc-and-the-big-4-treason-is-the-business-model/
George Rozvany is Australia’s most published expert on transfer pricing, which is one of the principal ways large corporations pursue cross-border tax avoidance. Rozvany stepped down in 2015 as head of tax in Australia for the world’s biggest insurance company, Allianz. Formerly, he was an insider at Ernst & Young, PwC and Arthur Andersen.

