Popular Formats

PDF 12,398,832
ePub 11,796,346
Kindle 4,321,605
eReader 3,156,219
FictionBook 2,103,632
Large Print PDF 1,751,228
Plucker 1,707,502
Palm Doc 1,694,138
Mobipocket-mobi 1,690,383
iSilo 1,315,028
RTF 1,091,026
Cellphone (.jar) 974,857
Plain text 886,995
Sony (Librie, Reader) 623,800
Mobipocket 546,418
Custom HTML 359,313
Microsoft LIT 326,481
iPod 195,764
zTXT 41,592
Rocketbook 37,493
TCR 10,364
iPhone Books.app 5,754
Newton 3,060
Total: 47,037,830 downloads since June 1, 2009, or thereabouts.