Thomas Lennart Joakim Erikson, born on September 19, 1965, in Örnsköldsvik, Sweden, is a Swedish author and keynote speaker. He is widely recognized for his self-help book series, "Surrounded By," which includes titles such as "Surrounded by Idiots" (2014), "Surrounded by Psychopaths," "Surrounded by Bad Bosses," "Surrounded by Setbacks," "Surrounded by Narcissists," "Surrounded by Energy Vampires," and "Surrounded by Liars" (2024).