No sales pitch, which avoids many errors! This book gives good techniques to make patterns tailored to the individual, while following the evolution of the costume throughout the centuries. This is currently the best practical book I found on medieval costume. And you can even use it to make modern clothes, taking action on the body is an essential basis. Full advice on the choice of fabrics, the organization of the cup etc. with plenty of clear shema. A chapter is devoted to hairstyles and hats, other accessories Sewing techniques are detailed, simple but not simplistic. This is a book designed to help those who sew costumes, not a historical sum: to predict your outfit will require a bit of research also on sources such as paintings, sculptures and illuminations. But there is a (short) bibliography on the subject. The only regret might be that the stores of supplies and books indicated (for there is also a list on this) are UK, US or Canada only.