1 1 20 How I Tamed the Voice in My Head, Reduced Stress Without Losing My Edge, and Found Self-Help That Actually Works Harris, Dan Primary Author mixed material 9780062265449 New York HarperCollins Publishers Inc. 2014 10% Happier : How I Tamed the Voice in My Head, Reduced Stress Without Losing My Edge, and Found Self-Help That Actually Works cover_10_happier_how_i_tamed_the_voice_in_my_head_reduced_stress_without_losing_my_edge_and_found_se