Jewellers - Erico Nagai, David Courts and Bill Hackett's

Can anyone out there help me find more on Erico
Nagai’s jewelry . I’ve been reading about her in
"Zeitgenossische Goldschmiedekunstler 2" a.k.a. “Contemporary
Gold Jewellery Artists Series: 2” but would like to learn more.

Also, I am intrigued by David Courts and Bill Hackett’s jewelry.
I think they’re British, but have seen very little of their
jewelry in print. Anyone familiar with them?

BTW, I am quite competent at using search engines, but thought
some of y’all might know of certain catalogues and/or books. (-;

Chris in Waynesville