Popular Formats

PDF 12,718,651
ePub 11,909,273
Kindle 4,338,601
eReader 3,165,076
FictionBook 2,109,357
Large Print PDF 1,764,727
Plucker 1,712,487
Mobipocket-mobi 1,704,952
Palm Doc 1,699,343
iSilo 1,320,063
RTF 1,098,254
Cellphone (.jar) 980,411
Plain text 887,067
Sony (Librie, Reader) 628,715
Mobipocket 551,774
Custom HTML 362,500
Microsoft LIT 331,287
iPod 200,600
zTXT 43,372
Rocketbook 39,383
TCR 10,693
iPhone Books.app 5,756
Newton 3,078
Total: 47,585,420 downloads since June 1, 2009, or thereabouts.