I've only seen the Vogue book of cables (checked it out of library). I like it a lot. But I'd need to see the Harmony series before I could decide which to buy.
Do you have a decent bookstore where you could flip thru both books?
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Marilyn
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Mirl56 at Ravelry, too.
Learn from the mistakes of others. You can’t live long enough to make them all yourself. Eleanor Roosevelt