Octaviano Larrazolo by Susan Zannos - 2004 - 48 pages
Octavio Paz by Joseph Roman - 1994 - 111 pages
Off the Map by William Clark - 1998 - 44 pages
Old Silver Leg takes over! by Robert M. Quackenbush - 1986 - 36 pages
Oliver Cromwell by Lawrence Kaplan - 1986 - 115 pages
Oliver Cromwell by Peter Young - 1968 - 92 pages
Oliver Wendell Holmes Jr by Sophie W. Littlefield, William Wiecek, William M. Wiecek - 2005 - 112 pages
Omar Nelson Bradley: the soldiers' general by Red Reeder - 1969 - 112 pages
On the trail of Sacagawea by Peter Lourie - 2001 - 48 pages
On to Richmond by James R. Arnold, Roberta Wiener - 2001 - 72 pages
On-LVL by HSP - 2002
One Life to Lose for My Country by Holly Cefrey - 2003 - 32 pages
Only passing through by Anne F. Rockwell, Gregory Christie - 2000 - 34 pages
Only the Birds Are Free by Anna Christake Cornwell - 2002 - 380 pages
Order of exercises at the Old South Church by George Washington Doane - 1831 - 8 pages
Orville & Wilbur Wright by Carole Marsh - 2002 - 32 pages
Os descobrimentos portugueses by Luís de Albuquerque, Ana Maria Magalhães, Isabel Alçada - 1992 - 198 pages
Osceola by Herman J. Viola - 1993 - 32 pages
Osceola, patriot and warrior by Moses Jumper, Ben Sonder - 1992 - 76 pages
Oskar Schindler by Ann Byers - 2005 - 160 pages
Oskar Schindler by John F. Wukovits - 2002 - 112 pages
Our Columbus Day book by Jane Belk Moncure - 1986 - 32 pages
Our Columbus Day book by Jane Belk Moncure - 1986 - 32 pages
Our Heroes #1 by Chaim Walder - 1998 - 200 pages
Our presidents by Nancy J. Skarmeas - 2001 - 87 pages
Our Young Folks' Plutarch by Rosalie Kaufman - 2007 - 640 pages
Out of Darkness by Russell Freedman - 1999 - 81 pages
Out of Darkness by Russell Freedman - 1999 - 81 pages
Out of Darkness by Russell Freedman - 1999 - 81 pages
Out of Slavery by Linda Granfield, Janet Wilson - 2009 - 40 pages
Out of Slavery by Linda Granfield, Janet Wilson - 2009 - 40 pages
Outlaws by Ann Weil - 2007 - 32 pages
Outlaws by Ann Weil - 2007 - 32 pages
Outlaws by John Townsend, Platt - 2004 - 48 pages
Outlaws by John Townsend - 2004 - 48 pages
Outlaws by Paul Thomas - 2002 - 48 pages
Outlaws by Paul Thomas - 1998 - 48 pages
Outlaws by Tim Healey - 1979 - 61 pages
Outnumbered by Eric Fein - 2003 - 32 pages