Popular Formats

PDF 13,463,662
ePub 12,733,351
Kindle 4,473,706
eReader 3,244,322
FictionBook 2,165,578
Large Print PDF 1,886,768
Mobipocket-mobi 1,842,429
Plucker 1,767,264
Palm Doc 1,754,908
iSilo 1,374,967
RTF 1,171,980
Cellphone (.jar) 1,014,736
Plain text 887,474
Sony (Librie, Reader) 681,252
Mobipocket 607,702
Microsoft LIT 382,252
Custom HTML 371,199
iPod 251,613
zTXT 62,701
Rocketbook 59,480
TCR 14,296
iPhone Books.app 5,757
Newton 3,128
Total: 50,220,525 downloads since June 1, 2009, or thereabouts.