A few more art-related items in the recent headlines:

• An obituary for Cy Twombly, 1928-2011. The American artist, best known for making paintings that look like blackboard scribbles, died on July 5th at age 83.
• An architectural review of Zaha Hadid’s Guangzhou Opera House in China.
• An article on Samuel F. B. Morse’s Gallery of the Louvre. The painting, currently on view at the National Gallery of Art in Washington, is one subject in David McCullough’s new book, The Greater Journey: Americans in Paris.