American readers seem to have given in this month and decided to buy in bulk when it comes to literotica - the boxed set of the Fifty Shades trilogy finally hitting the number one spot this month. Cloud Atlas has rocketed up the charts again on the back of the film, which, given the nature of the book must have been an undertaking! Summer is clearly the time when the psychologists get rolling - the Publication Manual of the APA making its reappearance after last summer's venture into the top ten. 

The top ten bestselling books in July, according to Amazon US:

1
Fifty Shade Trilogy boxed set by E L James book cover
Fifty Shades Trilogy
E L James
$28.71 from Amazon
2
Fifty Shades of Grey by E L James book cover

Fifty Shades of Grey
E L James
$9.57 from Amazon
3
Fifty Shades Freed by E L James book cover
Fifty Shades Freed
E L James
$9.57 from Amazon
4
Fifty Shades Darker by E L James book cover
Fifty Shades Darker
E L James
$9.57 from Amazon
5
Gone Girl by Gillian Flynn book cover
Gone Girl
Gillian Flynn
$13.94 from Amazon
6
Cloud Atlas by David Mitchell book cover
Cloud Atlas
David Mitchell
$9.00 from Amazon
7
Wheat Belly by William Davis book cover
Wheat Belly
William Davis
$15.44 from Amazon
8
Publication Manual of the APA by the American Psychological Association book cover
Publication Manual of the APA, 6th ed.
American Psychological Association
$17.37 from Amazon
9
Wild by Cheryl Strayed book cover
Wild
Cheryl Strayed
$14.80 from Amazon
10
The Hunger Games by Suzanne Collins book cover
The Hunger Games
Suzanne Collins
$5.39 from Amazon
Prices correct on 31/07/2012