Pieter Klein published a book focusing on the role of journalism in holding governments and institutions accountable. The book draws on his extensive experience in investigative journalism and offers insights into the challenges and responsibilities of the profession.

For his work on the childcare benefits scandal, Pieter Klein was awarded the prestigious De Tegel award in the category of investigative journalism. This accolade recognized his dedication to uncovering truth and holding power to account.

Pieter Klein played a pivotal role in exposing the Dutch childcare benefits scandal, a major investigative story that revealed systemic injustices in the tax authority's treatment of families. The scandal led to significant political fallout, including the resignation of the Dutch government.

In recognition of his leadership and journalistic acumen, Pieter Klein was appointed as the deputy editor-in-chief at RTL Nieuws. In this role, he oversaw major news coverage and spearheaded investigative projects that garnered national attention.

Pieter Klein joined RTL Nieuws, where he quickly rose through the ranks due to his incisive reporting and editorial skills. At RTL, he focused on political and investigative journalism, becoming a key figure in the newsroom.

Pieter Klein began his career in journalism with NOS Journaal, where he worked as a reporter covering a wide range of domestic news stories. His early work at NOS laid the foundation for his future in investigative journalism.