Manzoni in Italian and Arabic
One of the classic late 19th century travel books on Yemen was by the Italian Renzo Manzoni. In addition to an informative account of his trip to Sanaa, the illustrations are fantastic. The original Italian version, El Yèmen: Tre Anni nell' Arabia Felice, was published in 1884 and is available as a pdf online at archive.org. In 2014 the Social Fund for Development has sponsored an Arabic version, also available for free in pdf online.