One of them is Alterknits, a stitch dictionary that brings designs from graphic arts to knitting and the other, the Japanese Knitting Stitch Bible.
I could only add one right now and I had a very very hard time choosing.
It has motifs for everything. Edgings that are flared and some that are not.
Stitch patterns that writers used to call insertions because they could be inserted easily and anywhere,
And so many, many pages of truly stunning stitch motifs, incorporating, cables and lace and texture
Sometimes all at the same time!
There is even a range of motifs meant for yokes and round collars.
This book is stunning and you deserve it for Christmas. If not before.
This is on my must have list of books for a knitters library.