List of best-selling books Between 50 million and 100 million copies Between 50 million and 100 million copies

| Book_series | Author | Original_language | No_of_installments | First_published | Approximate_sales |
|---|---|---|---|---|---|
| Fifty Shades of Grey | E. L. James | English | 3 | 2011–2012 | 70 million |
| Left Behind | Tim LaHaye , Jerry B. Jenkins | English | 16 | 1996 — 2007 | 65 million |
| A Series of Unfortunate Events | Lemony Snicket aka Daniel Handler | English | 13 | 1999–2006 | 65 million |
| Little House on the Prairie | Laura Ingalls Wilder | English | 12 | 1932–2006 | 60 million |
| Jack Reacher | Lee Child | English | 16 | 1997–present | 60 million |
| Discworld | Terry Pratchett | English | 39 | 1983–present | 55 million |
| Where`s Wally? | Martin Handford | English | 13 | 1987–present | 55 million |
| Millennium Trilogy | Stieg Larsson | Swedish | 3 | 2005–2007 | 53 million |
| Men Are from Mars, Women Are from Venus | John Gray | English | 15 | 1992–present | 50 million |