List of best-selling books

Columns: Book | Author ( s ) | Original language | First published | Approximate sales
The Hunger Games | Suzanne Collins | English | 2008 | 29 million in U.S | The Young Guard ( Молодая гвардия ) | Alexander Alexandrovich Fadeyev | Russian | 1945 | 26 million copies in USSR | Who Moved My Cheese ? | Spencer Johnson | English | 1998 | 26 million | Paul et Virginie | Jacques-Henri Bernardin de Saint-Pierre | French | 1788 | 25 million | Lust for Life | Irving Stone | English | 1934 | 25 million | The Wind in the Willows | Kenneth Grahame | English | 1908 | 25 million | The 7 Habits of Highly Effective People | Stephen R. Covey | English | 1989 | 25 million

Example questions:
What kind of scientist was the best-selling author with between 20 million and 30 million copies sold of Paul et Virginie ? | Which book did the best-selling author with between 20 million and 30 million copies sold of Lust for Life write about Michelangelo ? | What medical job did the best-selling author with between 20 million and 30 million copies sold of Who Moved My Cheese hold ?

Answers:
botanist | The Agony and the Ecstasy | physician