If you’ve ever set boundaries, taken up a gratitude practice or manifested, you’re already well-versed in the language of self-help. Over its long history, self-help has acquired its own lexicon, often repurposing words along the way. Nowadays, the flavor is American but that wasn't always the case. We delve into the past and present of self-help language with Kristen Meinzer, co-host of the podcast, By the Book.