The House Plant Expert is one of the books in the Expert series written by the world's best-selling gardening author.   Quite simply, the best-selling gardening book in the world. Over a million copies have been sold in the U.S, and nearly 14 million worldwide. According to one reviewer - "after the Bible, the best-selling reference book of all time."   In a basketful of countries it has taught people how to choose and care for their indoor plants. Its style of dealing with each plant with drawings, photographs and no-nonsense text has become a legend in the publishing world. If you have house plants (and who doesn't?) you need this book.