One rainy afternoon, he found a worn copy of by José María Llamas . Expecting a dry textbook, he instead discovered a rigorous blueprint that treated selling not as an art of persuasion, but as a predictable psychological process .
Llamas structures the book around the psychological and logical progression of a commercial transaction. The "Scientific Structure" refers to the breakdown of the sale into distinct phases, analyzing the variables that influence the outcome at each stage. One rainy afternoon, he found a worn copy
Llamas argues that the "old-school" seller, who relies solely on talkativeness and luck, must be replaced by a professional who uses scientific tools and clearly ordered steps. Amazon.com.mx Technical Knowledge One rainy afternoon