Popular Formats

PDF 12,851,136
ePub 11,975,304
Kindle 4,350,531
eReader 3,172,717
FictionBook 2,115,186
Large Print PDF 1,776,899
Mobipocket-mobi 1,739,665
Plucker 1,718,150
Palm Doc 1,705,136
iSilo 1,325,736
RTF 1,105,861
Cellphone (.jar) 983,044
Plain text 887,100
Sony (Librie, Reader) 634,264
Mobipocket 557,702
Custom HTML 363,707
Microsoft LIT 336,782
iPod 206,125
zTXT 45,494
Rocketbook 41,586
TCR 11,076
iPhone Books.app 5,756
Newton 3,082
Total: 47,912,039 downloads since June 1, 2009, or thereabouts.