Mayor Gallery in London has filed a lawsuit against the publishers of the Agnes Martin catalogue raisonné, and the committee responsible for authenticating her works, claiming that 13 works left out of the book, and held by its clients, have been rendered worthless.  “When I read the complaint, I failed to see a legal claim. I’d never seen a legal complaint without a claim, until now. I compare it to an opera without music,â€Â says Aaron Richard Golub, the lawyer representing the authentication committee.  Read more at Art Newspaper