Michael Jackson's Thriller is the album with the most all time sales (est. 100 - 108 million albums). 2nd is AC/DC Back in Black with 42 million albums sold.
Many artists' album sales will rise posthumously. Most recently, Amy Winehouse and Michael Jackson have had soaring album sales.
Garth Brooks
Shania Twain and the album was Come on over
How many album sales does Young Dro have?
both
Michael Jackson
In 2011, their album sales were reportedly around 80 million.
Trivium has sold 4 million total album sales worldwide
For an album to 'go gold' sales must exceed 500,000. I believe this is world wide sales but am not 100%.
Eminem had 1.760.000 first-week album sales(album : The Marshall Mathers LP)
Lady Gaga (unfortunately) with sales of 5.8 million for her album The Fame Monster.
1.1 mill