Self Help Book Sales are Rising Fast in the US, The NPD Group Says

The self-help books category has experienced continued and solid growth in recent years. In fact, it has nearly doubled in size since 2013. Unit sales of self-help books have grown at a compound annual growth rate (CAGR) of 11 percent since 2013, reaching 18.6 million in 2019, according to global information company The NPD Group