It looks like you're referring to by Susan Cain (often abbreviated as Quiet ).
Here is a concise write-up of the book, covering its core thesis, key insights, and why it matters. The Core Thesis In a society that glorifies the "Extrovert Ideal"—the magnetic, risk-taking, smooth-talker—Susan Cain argues that we are systematically undervaluing and silencing a third to a half of the population: introverts. Quiet is not a self-help book to "fix" introverts, but a manifesto proving that solitude, sensitivity, and deep focus are superpowers. Quiet- El poder de los introvertidos Quiet- T...
"There's zero correlation between being the best talker and having the best ideas." It looks like you're referring to by Susan