Table:
text: 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

Question: What is each original language for the Little House on the Prairie book series among the best selling books list?

Question: What are the approximate sales for author Laura Ingalls Wilder among bestsellers?