Every so often I get the urge to troll through those old embroidery publications on-line. One I have used a number of times is "Corticelli Home Needlework" and now I find there is a complete magazine on 'Internet Archives.' What I like about these publications is that they have high quality colour illustrations.
Along with very good black and white drawings of the work.
A great source of inspiration for embroidery design.
This is only a small part of a great free on-line resource that covers 100's of catagories not just embroidery.