Popular Formats

PDF 13,787,403
ePub 13,162,645
Kindle 4,525,820
eReader 3,269,783
FictionBook 2,193,739
Large Print PDF 1,944,698
Mobipocket-mobi 1,884,809
Plucker 1,782,263
Palm Doc 1,770,091
iSilo 1,389,768
RTF 1,201,054
Cellphone (.jar) 1,030,557
Plain text 887,638
Sony (Librie, Reader) 695,077
Mobipocket 623,600
Microsoft LIT 395,821
Custom HTML 374,399
iPod 265,435
zTXT 67,573
Rocketbook 64,907
TCR 15,115
iPhone Books.app 5,757
Newton 3,151
2,010
1,975
1,369
Total: 51,346,457 downloads since June 1, 2009, or thereabouts.