Convenient collection of brief references, although one might argue endlessly about the decision to include some artists and not, for example, Klimt, Weiwei, or Modigliani, or about the choice of the representative work, for example, for Chagall, whose Old Testament-inspired art are undisputed masterpieces. Conversely, one might agree that for da Vinci "The Virgin and Child with St Anne" is a much better choice than "Mona Lisa". One might also be very happy to see many female artists and their work, from Artemisia Gentileschi to Lee Krasner. But one might have liked to see Georgia O'Keefe too.
One might endlessly (albeit a bit compulsively) mark the artworks that one has seen, or artists whose other artwork one has seen, and how what one has known about the particular artist or the particular masterpiece compares to what the author felt necessary to include in the book. If one is a nerd, one will enjoy various facts, like how the Council of Trent (that ended in 1563) "set rules for religious art, decreeing that landscapes were unsuitable subjects for paintings ad they did not focus on Catholicism". Finally, one might end up with the book on one's nightstand so that one might daydream and compose travel itineraries to go and see artwork that one has not yet seen.
"Art can be annoying, aggravating, uplifting or nostalgic, exciting, amusing and much more. Most of all, it is frequently intriguing, enthralling and even comforting. The world would be a drearier place without it."