Medieval Costume in England and France provides a great overview of the different styles of garb during the specified periods. It is divided by century, and further grouped by Royal/Religeous/Common styles. The line drawings are helpful in giving a general idea of how the different styles look. There are some general layout illustrations that would be helpful to an experienced sewer, but a beginner would need additional information to create the look, not provided by this book. ("The Medieval Tailor's Assistant" is perfect for this additional sewing information) I'm not a historian, so I can't comment on the reliability of the sources, but as a newcomer to the SCA I found this book very helpful in finding garb that would fit chosen personna. There are excellent historical descriptions, and frequent reference to sources. For what it intends to offer, this is an excellent book.