I own four books in this 'Searies' (Twenties, Thirties, Forties, Fifties) and I cannot recommend them highly enough. They are jam-packed with a great mix of pictures in good proportion which show the morphing of fashions over the decade(s). Dominant are women's clothing (formal, casual, dresses, hats, coats, shoes, with some undergarments, sportswear, nightwear, swimwear). Then there are smatterings of accessories (handbags, watches, gloves, powder compacts, belts, jewelry). Also some menswear and a small amount of childrenswear. All clothing is being worn.
All pictures are black and white and have a certain (pleasant) level of graininess. What you get are the original pictures, prices and descriptions from the catalogs. There is only a very small amount of introductory material (just a one page 'Publisher's Note' for the Thirties).
Changes over the series:
The transition from drawings (all very good and realistic) to photos occurs in the Thirties.
The variety of accessories appearing in the Twenties is largely reduced by the later decades (Fifties almost exclusively clothing and hats with some shoes).
There's only one problem with these catalogs...you can't order the contents!