Know what it's worth
An honest, independent estimate of what a work is really worth today — before you buy or sell.

Professor Derek Burton Collins helps private collectors and institutions buy, value, and sell fine art — from ancient works to modern and contemporary masterpieces — with confidence.
Professor Derek Burton Collins is a Harvard-trained art expert with more than thirty years of experience buying, valuing, and advising on fine art around the world — from the auction house Phillips in Asia to private collectors and museums.
Whether you are buying your first serious piece or looking after a lifetime's collection, Derek makes the art world clear and easy to navigate.
An honest, independent estimate of what a work is really worth today — before you buy or sell.
Expert judgment on whether a work is authentic and where it came from — so there are no surprises.
Clear guidance on what to buy, what to pass on, and the right time and place to sell.
Six questions, two minutes. Discover the instinct that guides your eye — and the first path Derek would set for you.
A private quarterly letter from Derek — on the works worth watching, what the market is missing, and the discipline of a trained eye. Four issues a year. Nothing else.
Welcome to the correspondence — your first dispatch is on its way.