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Thomas Erikson
Psychology & Personal Growth
Swedish author Thomas Erikson is known for his 'Surrounded By' self-help series, notably Surrounded by Idiots, using the pseudoscientific DISC color model.
Biography
Thomas Lennart Joakim Erikson (born 19 September 1965) is a Swedish author best known for his self-help book series Surrounded By. He is particularly associated with Surrounded by Idiots, in which he categorizes personalities by colors based on the pseudoscientific DISC assessment.
Following a reportedly disastrous meeting with an entrepreneur who felt he was "surrounded by idiots," Erikson focused on understanding how people function and why communication breaks down. Described in the book description as a communication expert and bestselling author, his work presents a four-type, color-coded system and practical advice on body language, written communication, conflict handling, and adapting how to speak and share information.
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Books by Thomas Erikson

Surrounded by Idiots
Surrounded by Idiots presents a simple, color-coded method for assessing personalities using four types (Red, Blue, Green, Yellow) based on the DISC assessment, and offers practical techniques to improve communication; it has sold over 1.5 million copies worldwide.