Albert Memmi was a Tunisian-born Jewish-French writer and sociologist known for his works on colonialism, identity, and the psychological effects of oppression. His most notable work, 'The Colonizer and the Colonized,' examines the complex relationships between colonizers and the colonized, shedding light on the challenges of identity and culture during decolonization. Memmi's insights contributed to the understanding of how colonial legacies continue to affect societies post-independence.