A readership survey conducted by the country's National Book Development Board (NBDB) has revealed that the Bible is still the most preferred reading material of Filipinos. The NBDB survey showed that the Bible continues to be the most popular book read among 58 percent of respondants, followed by romance books (25 percent) and cookery books (21 percent). In NBDB's 2007 survey, the Bible also came out on top at 67 percent. The nationwide survey of 1,200 adult readers was conducted in May.