Anita O'Day is one of the very best jazz vocalists of all time. Her recordings for Norman Granz represent her best recorded work. Here it all is. The sound quality of these CDs is better than any others of the same recordings. I know because I have them all, in shellac, in vinyl, in CD. In addition, the booklet that comes with the set, like the ones in all Mosaic sets, is first class. Well written, nice photos, accurate information. The one shortfall is that Anita was very much a visual artist, the way she worked, led the band, her timing all that was fascinating to watch and of course other than the photos in the booklet, this is an entirely audio experience. Without question this is the best Anita you will ever hear. It is a shame that it is out of print.