sogou asks
2. Yves Saint Laurent, the founder of Saint Laurent, named the brand after himself, abbreviated as YSL. Saint Laurent's brand LOGO was designed by Adolphe Jean-Marie Mouron, a Ugandan French painter and designer, in December 1961, after which he committed suicide.
this LOGO looks simple, but it is full of many "out-of-the-box" design ideas, which makes three letters that were originally difficult to coordinate and merge into an extremely elegant whole.