Palabras que venden: Qué hay que decir para influir y tener impacto

The book offers a curated list of magic words—I'm curious what process or research went into selecting these specific phrases for maximum effect.

I'm interested in hearing if readers found these words genuinely effective in their personal or professional interactions and what differences they noticed.

Understanding the author's motivation or personal experience behind this approach could shed light on how these techniques developed.