Popular Formats

PDF 13,970,780
ePub 13,437,480
Kindle 4,555,904
eReader 3,279,908
FictionBook 2,198,172
Large Print PDF 1,973,530
Mobipocket-mobi 1,903,301
Plucker 1,785,511
Palm Doc 1,773,500
iSilo 1,393,230
RTF 1,209,472
Cellphone (.jar) 1,040,657
Plain text 887,691
Sony (Librie, Reader) 697,880
Mobipocket 627,264
Microsoft LIT 400,860
Custom HTML 375,737
iPod 268,016
zTXT 68,599
Rocketbook 65,971
TCR 15,346
9,543
8,925
7,343
iPhone Books.app 5,757
Newton 3,174
Total: 51,963,551 downloads since June 1, 2009, or thereabouts.