It’s officially spring, and along with the blooming flowers, there’s a new crop of art books to enjoy—from a new tome documenting Frida Kahlo’s private home and sanctuary, to the true story of the infamous Isabella Stewart Garden Museum heist, plus Hans Ulrich Obrist’s new memoir and some gloriously colorful coffee table books. Happy reading! Casa Kahlo: Frida Kahlo’s Home and Sanctuary By Mara Romeo Kahlo and Mara de Anda Romeo and Frida Hentschel Romeo The cover of Casa Kahlo . Courtesy of Rizzoli. Frida Kahlo ’s descendants want art aficionados to know that even record-breaking artistic geniuses need support systems.“Casa Kahlo” offers an unprecedented look into the famed Mexican painter’s family home, also called Casa Roja , which stands just blocks away from Casa Azul in Mexico City. Kahlo’s father, Guillermo , bought Casa Roja the year after she married Diego Rivera —who’d promptly paid the mortgage on Casa Azul, which Guillermo had built. Kahlo would retreat to Casa Roja when Casa Azul got crazy.…