“ Ralph Lauren Catwalk,” which will be published Thursday by Thames & Hudson, marks a milestone as the brand is the first American fashion house to be featured in the “Catwalk” series. The book gives an inside look into one of the industry’s most celebrated American designers. The “Catwalk” series has historically highlighted the work of designers such as Coco Chanel, Christian Dior, Louis Vuitton, Yves Saint Laurent, Miuccia Prada, Vivienne Westwood, Versace, Chloe, Givenchy and Jean Paul Gaultier. Each volume provides an in-depth, illustrated history of a designer’s collection. At a whopping 632 pages, the “ Ralph Lauren Catwalk” book celebrates more than five decades of Lauren’s innovation and influence in women’s design. The book contains 1,300-plus original runway photographs and documents Lauren’s journey, starting with his debut women’s collection in fall 1972 through his fall 2025 women’s collection.…