| Countries by Number of Books Published | 0 | - | 4.95 | 72,611 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,144 |
| Authors by Picture | 0 | - | 4.48 | 25,538 |
| Military History Vocabulary | 0 | - | 4.91 | 67,163 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,976 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,512 |
| Name the English Monarchs | 0 | - | 4.91 | 502,758 |
| WWII Geography | 0 | - | 4.81 | 120,372 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,536 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,818 |
| Empires by Maps | 0 | - | 4.98 | 120,496 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,845 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,726 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,394 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,456 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,274 |
| Metals of Antiquity | 0 | - | 4.95 | 93,443 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,493 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,940 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,716 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,279 |
| Words for Leaders | 0 | - | 4.77 | 257,325 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 110,066 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,308 |
| Influential Women in History | 0 | - | 4.42 | 35,601 |
| Cradles of Civilization | 0 | - | 4.46 | 39,655 |
| Popular Royal Names | 0 | - | 4.27 | 124,968 |
| Materials From History #1 | 0 | - | 4.56 | 51,561 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,630 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,522 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,705 |
| First Names of Painters | 0 | - | 4.43 | 59,860 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,917 |
| Famous Explorers | 0 | - | 4.58 | 36,165 |
| Famous Empires by Description | 0 | - | 4.73 | 118,464 |
| Answers by Time Period | 0 | - | 4.64 | 55,580 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,586 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,964 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,871 |
| UN Secretaries-General | 0 | - | 4.40 | 7,799 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,636 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,041 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,352 |
| Books by Country Quiz | 0 | - | 4.30 | 32,241 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,405 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,261 |
| Countries with NO Military | 0 | - | 4.97 | 62,329 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,531 |
| NATO Countries | 0 | - | 4.98 | 280,460 |
| EU Countries Quiz | 0 | - | 4.99 | 274,292 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,556 |
| 7 Deadly Sins | 0 | - | 4.88 | 400,419 |
| Books of the Protestant Bible | 0 | - | 4.87 | 210,050 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,382 |
| Former Flags | 0 | - | 4.97 | 107,745 |
| Years in History by Picture | 0 | - | 4.44 | 35,524 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,598 |
| Materials From History #2 | 0 | - | 4.59 | 31,482 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,015 |
| WWII Decoder | 0 | - | 4.41 | 53,566 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,432 |
| Cold War Decoder | 0 | - | 4.83 | 52,362 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,414 |
| Events in History #2 | 0 | - | 4.49 | 71,723 |
| Events in History #3 | 0 | - | 4.41 | 71,703 |
| Events in History #4 | 0 | - | 4.44 | 44,313 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,240 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,008 |
| Assassinations in History | 0 | - | 4.21 | 66,209 |
| Famous Seconds | 0 | - | 4.22 | 46,577 |
| Ages and Eras | 0 | - | 4.39 | 67,714 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,484 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,792 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,167 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,997 |
| Female Historical Figures | 0 | - | 4.28 | 33,243 |
| Historical Blunders | 0 | - | 4.34 | 91,957 |
| People Who Died in Battle | 0 | - | 4.35 | 22,323 |
| Territorial Accessions | 0 | - | 4.34 | 34,789 |
| People Known as "The Great" | 0 | - | 4.46 | 24,673 |
| This Day in History - July | 0 | - | 4.49 | 36,452 |
| This Day in History - August | 0 | - | 4.42 | 43,361 |
| This Day in History - September | 0 | - | 4.55 | 57,447 |
| This Day in History - October | 0 | - | 4.49 | 37,625 |
| This Day in History - January | 0 | - | 4.47 | 46,719 |
| This Day in History - March | 0 | - | 4.45 | 43,668 |
| Ancient Civilizations | 0 | - | 4.64 | 37,965 |
| The Places They Went #1 | 0 | - | 4.74 | 33,534 |
| Famous Inventors | 0 | - | 4.44 | 43,543 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,937 |
| European History for Dummies | 0 | - | 4.83 | 89,919 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,795 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,679 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,013,911 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,408 |
| Coldest World Capitals | 0 | - | 4.95 | 133,566 |
| World Currency Quiz | 0 | - | 4.92 | 303,111 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,466 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,575 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,558 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,797 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,896 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,228 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,245 |
| Buddhist Countries | 0 | - | 4.96 | 144,359 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,097,620 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,706 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,866 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,285 |
| History Analogies #1 | 0 | - | 4.53 | 89,966 |
| History Analogies #2 | 0 | - | 4.49 | 77,215 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,607 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,176 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,098 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,112 |
| History Analogies #3 | 0 | - | 4.61 | 80,656 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,499 |
| Which Came First? | 0 | - | 4.37 | 74,802 |
| Russian History A-Z | 0 | - | 4.38 | 31,725 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,147 |
| Random History by Country | 0 | - | 4.53 | 34,863 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,890 |
| Animals in World History | 0 | - | 4.74 | 44,502 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,839 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,597 |
| History True or False #3 | 0 | - | 4.43 | 56,886 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,856 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,291 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,933 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,925 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 53,067 |
| WWII First Names | 0 | - | 4.44 | 41,788 |
| WWII for Dummies | 0 | - | 4.78 | 104,960 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,295 |
| Events in History #1 | 0 | - | 4.34 | 157,753 |
| Events in Ancient History | 0 | - | 4.50 | 35,989 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,664 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,241 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,765 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,092 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,430 |
| Political Quotes | 0 | - | 4.17 | 19,890 |
| This Day in History - April | 0 | - | 4.40 | 44,469 |
| This Day in History - May | 0 | - | 4.33 | 48,373 |
| This Day in History - June | 0 | - | 4.32 | 33,502 |
| This Day in History - November | 0 | - | 4.24 | 33,605 |
| This Day in History - December | 0 | - | 4.32 | 40,537 |
| This Day in History - February | 0 | - | 4.38 | 39,796 |
| The 19th Century | 0 | - | 4.53 | 68,135 |
| The 18th Century | 0 | - | 4.53 | 53,308 |
| The 16th Century | 0 | - | 4.77 | 58,890 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,687 |
| The 21st Century | 0 | - | 4.47 | 105,981 |
| Battle to Country | 0 | - | 4.91 | 53,353 |
| The Life of King David | 0 | - | 4.37 | 14,123 |
| History Multiple Choice #1 | 0 | - | 4.41 | 81,967 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,659 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,048 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,740 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,461 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,392 |
| English Royal Consorts | 0 | - | 4.38 | 37,361 |
| British History A-Z #1 | 0 | - | 4.45 | 46,487 |
| Kings of France Quiz | 0 | - | 4.20 | 32,748 |
| Dark Ages History | 0 | - | 4.42 | 32,758 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,040 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,610 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,084 |
| Monarchies of Europe | 0 | - | 4.90 | 98,163 |
| Monarchies of Asia | 0 | - | 4.97 | 71,095 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,186 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,194 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,424 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,725 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,423 |
| Richest Island Countries | 0 | - | 4.85 | 100,550 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,461 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,163 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,582 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,308 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,547 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,480 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,757 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,446 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,147 |
| Orthodox Countries | 0 | - | 4.92 | 131,962 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,413 |
| The Sun Quiz | 0 | - | 4.93 | 34,692 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,947 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,400 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,785 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,031 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,836 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,534 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,239 |
| Countries that Start with D | 0 | - | 4.96 | 709,728 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,318 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,455 |
| Countries that Start with H | 0 | - | 4.96 | 604,834 |
