| Abeka History (grades 1-8) | Abeka | Social_studies | Grades 1–8 | Traditional |
| A Child's First Book of American History | Beautiful Feet Bookshttps://bfbooks.com | Social_studies | Grades 2–7 | Charlotte Mason |
| A Child's Geography series | Master Bookshttps://www.masterbooks.com/ | Social_studies | Grades 1–8 | Charlotte Mason |
| A Child's History of the World | BN Publishinghttps://bn-publisher.com | Social_studies | Grades 1–6 | Classical |
| Adventures on the American Frontier Series | Royal Fireworks Press | Social_studies | Grades 3–8 | Charlotte Mason |
| Africa: A Land of Hope | Northwoods Press | Social_studies | Grades 3–12 | Literature Based |
| A Heart 4 You: China | Cornerstone Curriculum Projectinfo@cornerstonecurriculum.comhttps://www.cornerstonecurriculum.com/ | Social_studies | Grades 3–7 | Unit Study |
| A History of the United States and Its People | Lost Classics Book Company | Social_studies | Grades 6–8 | Traditional |
| A History of US, third edition | Oxford University PressCustomer Service Department | Social_studies | Grades 5–8 | Charlotte Mason |
| A Little History of the World | Yale University Presshttp://www.yalebooks.com | Social_studies | Grades 5–12 | Literature Based |
| All American History | Bright Ideas Press | Social_studies | Grades 5–8 | Literature Based |
| All Through the Ages: Living Books History Guide | Nothing New Pressinfo@nothingnewpress.comhttps://www.nothingnewpress.com/ | Social_studies | Grades 1–12 | Classical |
| America's Federal Holidays: The True Story | Classical Historianhttps://www.classicalhistorian.com/ | Social_studies | Grades 3–12 | Unit Study |
| America’s Story series | Master Bookshttps://www.masterbooks.com/ | Social_studies | Grades 3–6 | Charlotte Mason |
| America the Beautiful | Notgrass Historyhttps://shop.notgrass.com/ | Social_studies | Grades 5–8 | Unit Study |
| Ancient China: To the Great Wall. and Beyond | Zeezok Publishinghttp://www.zeezok.com | Social_studies | Grades K–12 | Unit Study |
| Ancient Egypt and Her Neighbors | Simply Charlotte Masonhttps://simplycharlottemason.com | Social_studies | Grades 2–6 | Classical |
| Ancient History: A Literature Approach | Beautiful Feet Bookshttps://bfbooks.com | Social_studies | Grades 5–12 | Classical |
| Anno's China, Anno's Denmark, Anno's Italy, Anno's Spain | Beautiful Feet Bookshttps://bfbooks.com | Social_studies | Grades K–8 | Charlotte Mason |
| Around California with Children’s Books | Beautiful Feet Bookshttps://bfbooks.com | Social_studies | Grades 4–6 | Charlotte Mason |
| Around the World in 180 Days | Apologia Educational Ministries | Social_studies | Grades K–12 | Unit Study |
| Asia: Its People and History | Write Bonnie Rosehttp://www.writebonnierose.com | Social_studies | Grades 1–6 | Literature Based |
| A Workbook and Study Guide to A Story of the Greeks by H.A. Guerber | St. Irene Presshttps://stirenepress.wixsite.com/website | Social_studies | Grades 5–8 | Classical |
| A Young Reader’s Edition of Land of Hope | Encounter Bookshttps://www.encounterbooks.com/ | Social_studies | Grades 7–12 | Traditional |
| BiblioPlan | BiblioPlancontactus@biblioplan.nethttps://biblioplan.net/ | Social_studies | Grades K–12 | Classical |