A critique on Big-4 accounting firms

https://www.theguardian.com/news/2018/may/29/the-financial-scandal-no-one-is-talking-about-big-four-accountancy-firms

Study using PCAOB data

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3300277

PCAOB inspections in 2019

https://www.journalofaccountancy.com/news/2018/dec/pcaob-inspection-focus-2019-201820237.html

Maintaining independence with nonattest service

https://www.journalofaccountancy.com/issues/2016/nov/maintaining-independence-with-nonattest-services.html

Critical audit matter disclosures

This article has six tips for developing the Critical Audit Matters disclosures https://www.journalofaccountancy.com/news/2018/dec/critical-audit-matter-disclosures-201820334.html