Popular Formats

PDF 13,622,529
ePub 12,915,465
Kindle 4,497,549
eReader 3,256,685
FictionBook 2,185,973
Large Print PDF 1,906,028
Mobipocket-mobi 1,862,840
Plucker 1,775,033
Palm Doc 1,762,717
iSilo 1,382,565
RTF 1,185,038
Cellphone (.jar) 1,021,282
Plain text 887,542
Sony (Librie, Reader) 688,614
Mobipocket 616,100
Microsoft LIT 389,443
Custom HTML 373,029
iPod 258,912
zTXT 65,285
Rocketbook 62,354
TCR 14,746
iPhone Books.app 5,757
Newton 3,137
Total: 50,738,623 downloads since June 1, 2009, or thereabouts.