Start with high-confidence permanent collections books, then narrow by subgenre or adjacent topics.
The Barnes Foundation: Masterworks
Judith F. Dolkart, Martha Lucy
My Hermitage
Dr. Mikhail Borisovich Piotrovsky
The Fricks Collect
Ian Wardropper
Russian Splendor
The Louvre
Genevieve Bresc-Bautier
Canaletto and Guardi
Lelia Packer, Charles Beddington
Epic Iran
John Curtis, Ina Sarikhani Sandmann
Musée D'orsay
Guillaume Morel