| Countries by Number of Books Published | 0 | - | 4.95 | 72,592 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,062 |
| Authors by Picture | 0 | - | 4.48 | 25,536 |
| Military History Vocabulary | 0 | - | 4.91 | 67,153 |
| "Second Best" History Edition | 0 | - | 4.94 | 62,958 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,503 |
| Name the English Monarchs | 0 | - | 4.91 | 502,607 |
| WWII Geography | 0 | - | 4.81 | 120,335 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,490 |
| Former Countries by Territory Map | 0 | - | 4.96 | 102,789 |
| Empires by Maps | 0 | - | 4.98 | 120,446 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,820 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,716 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,381 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,452 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,271 |
| Metals of Antiquity | 0 | - | 4.95 | 93,431 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,488 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,934 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,703 |
| History: What Came First? #1 | 0 | - | 4.87 | 105,254 |
| Words for Leaders | 0 | - | 4.77 | 257,284 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 110,062 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 70,298 |
| Influential Women in History | 0 | - | 4.42 | 35,589 |
| Cradles of Civilization | 0 | - | 4.46 | 39,642 |
| Popular Royal Names | 0 | - | 4.27 | 124,944 |
| Materials From History #1 | 0 | - | 4.56 | 51,548 |
| Historical Countries by Ruler | 0 | - | 4.48 | 48,622 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,514 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 707,632 |
| First Names of Painters | 0 | - | 4.43 | 59,855 |
| Biggest Nations and Empires Ever | 0 | - | 4.52 | 145,890 |
| Famous Explorers | 0 | - | 4.58 | 36,159 |
| Famous Empires by Description | 0 | - | 4.73 | 118,448 |
| Answers by Time Period | 0 | - | 4.64 | 55,569 |
| Books with Animals in the Title #1 | 0 | - | 4.41 | 74,582 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,958 |
| History of The Netherlands | 0 | - | 4.46 | 17,433 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,867 |
| UN Secretaries-General | 0 | - | 4.40 | 7,798 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,633 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,032 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,339 |
| Books by Country Quiz | 0 | - | 4.30 | 32,239 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,298 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,101 |
| Countries with NO Military | 0 | - | 4.97 | 62,275 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 148,448 |
| NATO Countries | 0 | - | 4.98 | 280,325 |
| EU Countries Quiz | 0 | - | 4.99 | 274,159 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,390 |
| 7 Deadly Sins | 0 | - | 4.88 | 400,329 |
| Books of the Protestant Bible | 0 | - | 4.89 | 209,980 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,230 |
| Former Flags | 0 | - | 4.97 | 107,724 |
| Years in History by Picture | 0 | - | 4.44 | 35,520 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,586 |
| Materials From History #2 | 0 | - | 4.59 | 31,481 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,004 |
| WWII Decoder | 0 | - | 4.41 | 53,555 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,418 |
| Cold War Decoder | 0 | - | 4.83 | 52,356 |
| 20th Century Dates Quiz | 0 | - | 4.56 | 39,412 |
| Events in History #2 | 0 | - | 4.49 | 71,717 |
| Events in History #3 | 0 | - | 4.41 | 71,698 |
| Events in History #4 | 0 | - | 4.44 | 44,307 |
| Name a Valid Year in History | 0 | - | 4.93 | 67,205 |
| Infamous Criminals - Mostly U.S. | 0 | - | 4.21 | 49,005 |
| Assassinations in History | 0 | - | 4.21 | 66,205 |
| Famous Seconds | 0 | - | 4.22 | 46,573 |
| Ages and Eras | 0 | - | 4.39 | 67,711 |
| Celebrity Knights of the United Kingdom | 0 | - | 4.23 | 39,484 |
| Titled People Quiz #1 | 0 | - | 4.11 | 45,787 |
| Titled People Quiz #3 | 0 | - | 4.34 | 43,162 |
| Job Titles Quiz #1 | 0 | - | 4.22 | 75,992 |
| Female Historical Figures | 0 | - | 4.28 | 33,240 |
| Historical Blunders | 0 | - | 4.34 | 91,957 |
| People Who Died in Battle | 0 | - | 4.35 | 22,322 |
| Territorial Accessions | 0 | - | 4.34 | 34,785 |
| People Known as "The Great" | 0 | - | 4.46 | 24,672 |
| This Day in History - July | 0 | - | 4.49 | 36,451 |
| This Day in History - August | 0 | - | 4.42 | 43,360 |
| This Day in History - September | 0 | - | 4.55 | 57,443 |
| This Day in History - October | 0 | - | 4.49 | 37,625 |
| This Day in History - January | 0 | - | 4.47 | 46,713 |
| This Day in History - March | 0 | - | 4.45 | 43,668 |
| Ancient Civilizations | 0 | - | 4.64 | 37,958 |
| The Places They Went #1 | 0 | - | 4.74 | 33,532 |
| Famous Inventors | 0 | - | 4.44 | 43,540 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,925 |
| European History for Dummies | 0 | - | 4.83 | 89,904 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,791 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,660 |
| 40 Historical People that Everyone Should Know | 0 | - | 4.09 | 1,013,826 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,381 |
| Coldest World Capitals | 0 | - | 4.95 | 133,555 |
| World Currency Quiz | 0 | - | 4.92 | 302,990 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,402 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,541 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,544 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,782 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,869 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,168 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,191 |
| Buddhist Countries | 0 | - | 4.96 | 144,323 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,097,454 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,615 |
| The 2nd Millennium BC | 0 | - | 4.64 | 20,859 |
| Body Parts in History and Culture | 0 | - | 4.43 | 35,281 |
| History Analogies #1 | 0 | - | 4.53 | 89,963 |
| History Analogies #2 | 0 | - | 4.49 | 77,209 |
| Current Events by Year, 1990–2009 | 0 | - | 4.77 | 152,595 |
| Current Events by Year, 1970–1989 | 0 | - | 4.56 | 65,168 |
| Current Events by Year, 1930–1949 | 0 | - | 4.48 | 52,091 |
| Groups of Things - History #1 | 0 | - | 4.41 | 94,102 |
| History Analogies #3 | 0 | - | 4.61 | 80,651 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,490 |
| Which Came First? | 0 | - | 4.37 | 74,791 |
| Russian History A-Z | 0 | - | 4.38 | 31,711 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,139 |
| Random History by Country | 0 | - | 4.53 | 34,862 |
| Valid Answer - World History #1 | 0 | - | 4.56 | 61,884 |
| Animals in World History | 0 | - | 4.74 | 44,497 |
| People - Real or Fictional? | 0 | - | 4.56 | 58,834 |
| Places - Real or Fictional? | 0 | - | 4.59 | 49,591 |
| History True or False #3 | 0 | - | 4.43 | 56,874 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,854 |
| World Leaders of the Cold War | 0 | - | 4.27 | 25,291 |
| Five Most Guessed World Leaders by Country | 0 | - | 4.20 | 48,908 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,916 |
| A to Z: Legendary Creatures | 0 | - | 4.26 | 53,060 |
| WWII First Names | 0 | - | 4.44 | 41,782 |
| WWII for Dummies | 0 | - | 4.78 | 104,933 |
| Cold War Trivia #1 | 0 | - | 4.42 | 57,291 |
| Events in History #1 | 0 | - | 4.34 | 157,746 |
| Events in Ancient History | 0 | - | 4.50 | 35,980 |
| People Who Died Young #1 | 0 | - | 4.24 | 63,660 |
| Deaths by Date and Cause #1 | 0 | - | 4.38 | 95,232 |
| Deaths by Date and Cause #2 | 0 | - | 4.15 | 67,758 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 74,081 |
| Countries That Were Invaded | 0 | - | 4.55 | 97,419 |
| Political Quotes | 0 | - | 4.17 | 19,889 |
| This Day in History - April | 0 | - | 4.40 | 44,468 |
| This Day in History - May | 0 | - | 4.33 | 48,372 |
| This Day in History - June | 0 | - | 4.32 | 33,501 |
| This Day in History - November | 0 | - | 4.24 | 33,603 |
| This Day in History - December | 0 | - | 4.32 | 40,537 |
| This Day in History - February | 0 | - | 4.38 | 39,794 |
| The 19th Century | 0 | - | 4.53 | 68,127 |
| The 18th Century | 0 | - | 4.53 | 53,302 |
| The 16th Century | 0 | - | 4.77 | 58,887 |
| The 9th and 10th Century | 0 | - | 4.54 | 37,679 |
| The 21st Century | 0 | - | 4.47 | 105,958 |
| Battle to Country | 0 | - | 4.91 | 53,329 |
| The Life of King David | 0 | - | 4.37 | 14,121 |
| History Multiple Choice #1 | 0 | - | 4.41 | 81,957 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,653 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,041 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,736 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,457 |
| Three Real and One Fake - World History | 0 | - | 4.44 | 38,387 |
| English Royal Consorts | 0 | - | 4.38 | 37,351 |
| British History A-Z #1 | 0 | - | 4.45 | 46,481 |
| Kings of France Quiz | 0 | - | 4.20 | 32,742 |
| Dark Ages History | 0 | - | 4.42 | 32,758 |
| 30 Historical People You Probably Don't Know | 0 | - | 4.36 | 61,032 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 337,550 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,063 |
| Monarchies of Europe | 0 | - | 4.90 | 98,139 |
| Monarchies of Asia | 0 | - | 4.97 | 71,086 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,184 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,168 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,393 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,694 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,402 |
| Richest Island Countries | 0 | - | 4.85 | 100,528 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,434 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,154 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,443 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,289 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,528 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,448 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,716 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,400 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,123 |
| Orthodox Countries | 0 | - | 4.92 | 131,921 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,370 |
| The Sun Quiz | 0 | - | 4.93 | 34,678 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,934 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,385 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,766 |
| Divided World City Name Puzzle #2 | 0 | - | 4.84 | 37,012 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,398 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,099 |
| Countries that Start with C | 0 | - | 4.96 | 1,821,869 |
| Countries that Start with D | 0 | - | 4.96 | 709,461 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,021 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,117 |
| Countries that Start with H | 0 | - | 4.96 | 604,657 |
