Sophie Keller wants you to be happy. In fact, this happiness expert (and mom to 4-year-old Judah) has literally written the book on it. Four to be exact.

But rather than passing on wisdom from an exceptionally easy life, this British transplant, who lives in Santa Monica with her husband and son, says it’s actually life’s hurdles that have made her an expert on happiness.

“I was bullied a lot at school from the ages of 7 to 14 every day, and then …

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