Popular Formats

PDF 12,980,874
ePub 12,121,935
Kindle 4,375,948
eReader 3,187,802
FictionBook 2,126,312
Large Print PDF 1,800,205
Mobipocket-mobi 1,763,270
Plucker 1,729,003
Palm Doc 1,716,031
iSilo 1,336,585
RTF 1,120,366
Cellphone (.jar) 990,261
Plain text 887,183
Sony (Librie, Reader) 644,877
Mobipocket 568,946
Custom HTML 365,616
Microsoft LIT 347,384
iPod 216,654
zTXT 49,465
Rocketbook 45,716
TCR 11,795
iPhone Books.app 5,756
Newton 3,092
Total: 48,395,076 downloads since June 1, 2009, or thereabouts.