Viktor E. Frankl

Viktor E. Frankl was an Austrian neurologist, psychiatrist, and Holocaust survivor. He is best known for his book 'Man's Search for Meaning', which explores the psychological and philosophical insights he gained from his experiences in Nazi concentration camps during World War II. Frankl's work focuses on the search for meaning and purpose in life, and he is widely regarded as one of the most influential thinkers of the 20th century.