Question: What is every original language for book series Little House on the Prairie?
SQL: SELECT "Original language" FROM "1-2512935-8" WHERE "Book series" = 'Little House on the Prairie';

Question: What are all approximate sales for the author Laura Ingalls Wilder?
SQL: SELECT "Approximate sales" FROM "1-2512935-8" WHERE "Author" = 'Laura Ingalls Wilder';