6 books • 7 series
Book #160: Frommer's? China
Book #230: Frommer's Japan
Book #231: Frommer's Tokyo
Book #451: Frommer's Beijing
Book #485: Frommer's Hong Kong
Book #318: Frommer's Shanghai
Book #671: Frommer's Southeast Asia
Book #739: Frommer's? China
Book #857: Frommer's Shanghai
Book #411: Frommer's Beijing
Book #741: Frommer's Vietnam
Book #3: Ask Arthur Frommer
Book #15: Frommer's Cancun, Cozumel and the Yucatan
Book #19: Frommer's Seville, Granada & the Best of Andalusia
Book #21: Frommer's Spain
Book #28: Frommer's? Denmark