This document provides a summary of Mikhail Khodorkovsky's rise from a young Soviet chemical engineer to becoming one of the richest men in Russia as the founder and CEO of the oil company Yukos. It describes how Khodorkovsky used his wealth to support opposition political parties, which put him at odds with Vladimir Putin. Putin had Khodorkovsky arrested in 2003 and convicted in two controversial trials for tax evasion and fraud that were widely seen as politically motivated. Khodorkovsky remains in prison despite some legal victories appealing his human rights, with an uncertain release date.