"Modern Embroidery" is one of my all time favourite embroidery books. It was published in English in 1972 & is worth buying for the fabulous styling alone! Apart from that I love the use of chain stitch as a "fill" stitch. It's now my filler of choice.
I really truly think that anybody who has a keen interest in stitchery should own a copy.
There are quite a few super cute easter projects too.
If you can track one down on ebay it's a great one to have in the library.
Edit: You guys are keen...excellent.
Here are the particulars for anybody now on the hunt
Modern Embroidery by Ike Rosen First published in English 1972 B.T Batsford Ltd London ISBN 0 7134 2655 1