He said the books were nominated to Apple's editorial team, which has final say on the selections, based on criteria including sales performance and reader reviews.
Tellingly, advertisers that compensate their agencies based on performance criteria like sales rather than conventional commission or fee methods ranked the quality of their advertising higher, a mean rating of 7.5 compared with 7.0 for those who use conventional methods.
Our criteria included sales growth, net income growth and return on capital over both the past five years and latest 12 months, typically through September.
Other Criteria reported several sales of Damien Hirst's silkscreened Psalm prints with diamond dust, which come in runs of 50 and are priced at £3,500 apiece.
Former Foreign Office minister Peter Hain, who established the strict criteria on arms sales, last night demanded that the government be transparent about the change and called for parliament to be allowed a vote.
She said in a written statement: "In light of the government commitment to increase protection for access and public benefit in our woodlands, the criteria for these sales will be reviewed so that protections are significantly strengthened following the inadequate measures that were applied to sales under the previous administration.
Romano Prodi, the European commission president, said it was up to governments to judge whether potential buyers met the criteria for arms sales under an EU code of conduct which forbids weapons exports to countries that might use them for aggression or internal repression.
It says the most significant change in the government's policy on arms exports over the past year is the dropping of the wording in the arms sales criteria that: "An export licence will not be issued if the arguments for doing so are outweighed … by concern that the goods might be used for internal repression".
He scores on a mix of value, momentum and growth criteria, but increasing sales count the most.
Forbes last week named NutriSystem the best small company in America based on criteria that include sales, earnings growth and return on equity.
