Popular Formats

PDF 13,191,410
ePub 12,388,811
Kindle 4,417,575
eReader 3,214,309
FictionBook 2,145,309
Large Print PDF 1,838,303
Mobipocket-mobi 1,799,989
Plucker 1,747,664
Palm Doc 1,734,720
iSilo 1,355,159
RTF 1,146,393
Cellphone (.jar) 1,003,264
Plain text 887,307
Sony (Librie, Reader) 663,939
Mobipocket 588,582
Custom HTML 368,766
Microsoft LIT 365,246
iPod 234,448
zTXT 56,222
Rocketbook 52,754
TCR 13,078
iPhone Books.app 5,756
Newton 3,112
Total: 49,222,116 downloads since June 1, 2009, or thereabouts.