1 Lie Detecting 101 Lie Detecting 101
David Craig
2 Ultimate Book of Trivia Ultimate Book of Trivia
Scott McNeely
3 Learn French - Word Power 101 Learn French - Word Power 101
Innovative Language Learning, LLC
4 The Great Alone: A Novel by Kristin Hannah: Conversation Starters The Great Alone: A Novel by Kristin Hannah: Conversation Starters
Daily Books
5 Bad Blood: Secrets and Lies in a Silicon Valley Startup​​​​​​​ by John Carreyrou  Conversation Starters Bad Blood: Secrets and Lies in a Silicon Valley Startup​​​​​​​ by John Carreyrou Conversation Starters
dailyBooks
6 Little Fires Everywhere: by Celeste Ng  Conversation Starters Little Fires Everywhere: by Celeste Ng Conversation Starters
dailyBooks
7 Learn Mexican Spanish - Word Power 101 Learn Mexican Spanish - Word Power 101
Innovative Language Learning, LLC
8 Red Notice: A True Story of High Finance, Murder and One Man’s Fight for Justice by Bill Browder: Conversation Starters Red Notice: A True Story of High Finance, Murder and One Man’s Fight for Justice by Bill Browder: Conversation Starters
Daily Books
9 12 Rules For Life: An Antidote to Chaos by Jordan Peterson: Conversation Starters 12 Rules For Life: An Antidote to Chaos by Jordan Peterson: Conversation Starters
Daily Books
10 Factfulness: Ten Reasons We're Wrong About the World--and Why Things Are Better Than You Think by Hans Rosling: Conversation Starters Factfulness: Ten Reasons We're Wrong About the World--and Why Things Are Better Than You Think by Hans Rosling: Conversation Starters
Daily Books
11 iPhone X Survival Guide: Step-by-Step User Guide for the iPhone X and iOS 11: From Getting Started to Advanced Tips and Tricks iPhone X Survival Guide: Step-by-Step User Guide for the iPhone X and iOS 11: From Getting Started to Advanced Tips and Tricks
Toly Kay
12 Before We Were Yours: by Lisa Wingate​​​​​​​  Conversation Starters Before We Were Yours: by Lisa Wingate​​​​​​​ Conversation Starters
dailyBooks
13 Summary of The Plant Paradox: The Hidden Dangers in Healthy Foods That Cause Disease and Weight Gain By Dr. Steven Gundry Summary of The Plant Paradox: The Hidden Dangers in Healthy Foods That Cause Disease and Weight Gain By Dr. Steven Gundry
iNstant Reads
14 Learn Spanish - Word Power 101 Learn Spanish - Word Power 101
Innovative Language Learning, LLC
15 From Cold War to hot Peace: An American Ambassador in Putin's Russia by Michael McFaul: Conversation Starters From Cold War to hot Peace: An American Ambassador in Putin's Russia by Michael McFaul: Conversation Starters
Daily Books
16 Bad Blood by John Carreyrou: Conversation Starters Bad Blood by John Carreyrou: Conversation Starters
Daily Books
17 The Woman in the Window: by A.J Finn  Conversation Starters The Woman in the Window: by A.J Finn Conversation Starters
Daily Books
18 Getting To 'I Do' Getting To 'I Do'
Pat Allen & Sandra Harmon
19 Spanish Made Simple Spanish Made Simple
Judith Nemethy
20 Liars, Leakers, and Liberals: The Case Against the Anti-Trump Conspiracy by Jeanine Pirro: Conversation Starters Liars, Leakers, and Liberals: The Case Against the Anti-Trump Conspiracy by Jeanine Pirro: Conversation Starters
Daily Books
21 To Kill a Mockingbird (Harperperennial Modern Classics) by Harper Lee  Conversation Starters To Kill a Mockingbird (Harperperennial Modern Classics) by Harper Lee Conversation Starters
Daily Books
22 Why We Sleep: Unlocking the Power of Sleep and Dreams by Matthew Walker: Conversation Starters Why We Sleep: Unlocking the Power of Sleep and Dreams by Matthew Walker: Conversation Starters
Daily Books
23 Before We Were Yours: A Novel by Lisa Wingate: Conversation Starters Before We Were Yours: A Novel by Lisa Wingate: Conversation Starters
dailyBooks
24 Girl, Wash Your Face: Stop Believing the Lies About Who You Are so You Can Become Who You Were Meant to Be by Rachel Hollis: Conversation Starters Girl, Wash Your Face: Stop Believing the Lies About Who You Are so You Can Become Who You Were Meant to Be by Rachel Hollis: Conversation Starters
Daily Books
25 The Alice Network: A Novel by Kate Quinn: Conversation Starters The Alice Network: A Novel by Kate Quinn: Conversation Starters
Daily Books
26 Learn German - Word Power 101 Learn German - Word Power 101
Innovative Language Learning, LLC
27 The Old Farmer's Almanac 2018 The Old Farmer's Almanac 2018
Old Farmer's Almanac
28 2018 / 2019 ASVAB For Dummies 2018 / 2019 ASVAB For Dummies
Angie Papple Johnston
29 Summary: The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life Summary: The Subtle Art of Not Giving a F*ck: A Counterintuitive Approach to Living a Good Life
Readtrepreneur Publishing
30 Learn Spanish - Level 1: Introduction (Enhanced Version) Learn Spanish - Level 1: Introduction (Enhanced Version)
Innovative Language Learning
31 Barracoon: The Story of the Last Black Cargo by Zora Neale Hurston: Conversation Starters Barracoon: The Story of the Last Black Cargo by Zora Neale Hurston: Conversation Starters
Daily Books
32 The Five Dysfunctions of a Team The Five Dysfunctions of a Team
Instaread
33 Summary of Getting to Yes Summary of Getting to Yes
Instaread
34 Universal Declaration of Human Rights: Dignity and Justice for All of Us Universal Declaration of Human Rights: Dignity and Justice for All of Us
United Nations
35 Great Dane: Training, Grooming, and Dog Care Great Dane: Training, Grooming, and Dog Care
Linda F.
36 French Grammar: Theory and Exercises French Grammar: Theory and Exercises
My Ebook Publishing House
37 German German
Joseph Rosenberg
38 A Practical Wedding A Practical Wedding
Meg Keene
39 U.S. Army Hand-to-Hand Combat U.S. Army Hand-to-Hand Combat
Army
40 The Writer's Process: Getting Your Brain in Gear The Writer's Process: Getting Your Brain in Gear
Anne Janzer
41 U.S. Army Improvised Munitions Handbook (US Army Survival) U.S. Army Improvised Munitions Handbook (US Army Survival)
Army
42 50 Successful Harvard Application Essays 50 Successful Harvard Application Essays
Staff of the Harvard Crimson
43 Novelle Rusticane - Little Novels of Sicily Novelle Rusticane - Little Novels of Sicily
Giovanni Verga
44 Speed Reading: How to Read Faster Speed Reading: How to Read Faster
Chan Hu Wang
45 Summary: The End of Alzheimer's: The First Program to Prevent and Reverse Cognitive Decline Summary: The End of Alzheimer's: The First Program to Prevent and Reverse Cognitive Decline
Readtrepreneur Publishing
46 Learn Italian - Word Power 101 Learn Italian - Word Power 101
Innovative Language Learning, LLC
47 The Russia Hoax: The Illicit Scheme to Clear Hillary Clinton and Frame Donald Trump by Gregg Jarrett: Conversation Starters The Russia Hoax: The Illicit Scheme to Clear Hillary Clinton and Frame Donald Trump by Gregg Jarrett: Conversation Starters
Daily Books
48 Rick Steves' French Phrase Book & Dictionary Rick Steves' French Phrase Book & Dictionary
Rick Steves
49 I’ll Be Gone in the Dark: by Michelle McNamara  Conversation Starters I’ll Be Gone in the Dark: by Michelle McNamara Conversation Starters
Daily Books
50 Write and Grow Rich Write and Grow Rich
Alinka Rutkowska, Adam Houge, Alexa Bigwarfe, Amy Collins, Bryan Cohen, Caitlin Pyle, Claire Diaz-Ortiz, Christine Kloser, Daniel Hall, Donna Kozik, Debbie Drum, Derek Doepker, Derek Murphy, Jason Ladd, Jyotsna Ramachandran, Kirsten Oliphant, Kristen Joy, Lise Cartwright, Marc Guberti, Matt Stone, Sally Miller, Steve Alcorn, Summer Tannhauser & Susan Friedmann
51 One Hundred Years of Solitude: A Novel by Gabriel Garcia Márquez  Conversation Starters One Hundred Years of Solitude: A Novel by Gabriel Garcia Márquez Conversation Starters
Daily Books
52 Bad Blood: Secrets and Lies in a Silicon Valley Startup by John Carreyrou: Conversation Starters Bad Blood: Secrets and Lies in a Silicon Valley Startup by John Carreyrou: Conversation Starters
Daily Books
53 iPad Pro Survival Guide: Step-by-Step User Guide for the iPad Pro: From Getting Started to Advanced Tips and Tricks iPad Pro Survival Guide: Step-by-Step User Guide for the iPad Pro: From Getting Started to Advanced Tips and Tricks
Toly Kay
54 Visual Dictionary - 11 Languages (Enhanced Version) Visual Dictionary - 11 Languages (Enhanced Version)
Innovative Language Learning, LLC
55 The Intelligent Investor The Intelligent Investor
Instaread
56 Daily Rituals Daily Rituals
Mason Currey
57 Private Pilot Oral Exam Guide Private Pilot Oral Exam Guide
Michael D. Hayes
58 The Catcher in the Rye by Jerome David Salinger (Book Analysis) The Catcher in the Rye by Jerome David Salinger (Book Analysis)
Bright Summaries
59 Summary of Diet Evolution: Turn Off the Genes That Are Killing You and Your Waistline By Dr Steven Gundry Summary of Diet Evolution: Turn Off the Genes That Are Killing You and Your Waistline By Dr Steven Gundry
OneHour Summaries
60 Born a Crime: Stories from a South African Childhood by Trevor Noah: Conversation Starters Born a Crime: Stories from a South African Childhood by Trevor Noah: Conversation Starters
dailyBooks
61 Man's Search for Meaning: by Viktor E. Frankl  Key Takeaways, Analysis & Review Man's Search for Meaning: by Viktor E. Frankl Key Takeaways, Analysis & Review
Instaread
62 The Great Alone: by Kristin Hannah  Conversation Starters The Great Alone: by Kristin Hannah Conversation Starters
Daily Books
63 Webster's Spanish-English Dictionary/Diccionario Ingles-Espanol Webster's Spanish-English Dictionary/Diccionario Ingles-Espanol
Claire Crawford
64 A Gentleman in Moscow: A Novel By Amor Towles : Conversation Starters A Gentleman in Moscow: A Novel By Amor Towles : Conversation Starters
Daily Books
65 The Unbearable Lightness of Being by Milan Kundera (Book Analysis) The Unbearable Lightness of Being by Milan Kundera (Book Analysis)
Bright Summaries
66 A Man Called Ove: A Novel by Fredrik Backman  Conversation Starters A Man Called Ove: A Novel by Fredrik Backman Conversation Starters
Daily Books
67 The Complete SIFT Study Guide The Complete SIFT Study Guide
Michael Clark
68 The Soul of America: The Battle for Our Better Angels by Jon Meacham: Conversation Starters The Soul of America: The Battle for Our Better Angels by Jon Meacham: Conversation Starters
Daily Books
69 Essentialism Essentialism
Instaread
70 Pan American Airways Class Photos Pan American Airways Class Photos
Steve Priske
71 Being Mortal: by Atul Gawande: Medicine and What Matters in the End  Conversation Starters Being Mortal: by Atul Gawande: Medicine and What Matters in the End Conversation Starters
Daily Books
72 The Plant Paradox The Plant Paradox
The Summary Guy
73 Learn English - Word Power 101 Learn English - Word Power 101
Innovative Language Learning, LLC
74 12 Rules for Life 12 Rules for Life
The Summary Guy
75 Sharp Objects: A Novel By Gillian Flynn  Conversation Starters Sharp Objects: A Novel By Gillian Flynn Conversation Starters
Daily Books
76 Easy French Reader Premium, Third Edition Easy French Reader Premium, Third Edition
R. de Roussy de Sales
77 Educated: A Memoir by Tara Westover: Conversation Starters Educated: A Memoir by Tara Westover: Conversation Starters
Daily Books
78 TExES PPR EC-12 Study Guide TExES PPR EC-12 Study Guide
TExES PPR Exam Prep Team
79 Learn Japanese - Word Power 101 Learn Japanese - Word Power 101
Innovative Language Learning, LLC
80 The Life-Changing Magic of Tidying Up The Life-Changing Magic of Tidying Up
Instaread
81 The Official DLAB Training Manual The Official DLAB Training Manual
Robert J. Cunnings
82 The Official LSAT PrepTest 76 The Official LSAT PrepTest 76
Law School Admission Council
83 On Tyranny: Twenty Lessons from the Twentieth Century by Timothy Snyder: Conversation Starters On Tyranny: Twenty Lessons from the Twentieth Century by Timothy Snyder: Conversation Starters
Daily Books
84 Bird by Bird Bird by Bird
Anne Lamott
85 Judgement Detox​​​​​​​: by Gabrielle Bernstein  Conversation Starters Judgement Detox​​​​​​​: by Gabrielle Bernstein Conversation Starters
dailyBooks
86 100 Deadly Skills: Survival Edition 100 Deadly Skills: Survival Edition
Clint Emerson
87 100 Deadly Skills 100 Deadly Skills
Clint Emerson
88 Summary of The Obesity Code Summary of The Obesity Code
Instaread
89 The Knot Complete Guide to Weddings The Knot Complete Guide to Weddings
Carley Roney & The Editors of TheKnot.com
90 Learn Korean - Word Power 101 Learn Korean - Word Power 101
Innovative Language Learning, LLC
91 Learn Swedish - Word Power 101 Learn Swedish - Word Power 101
Innovative Language Learning, LLC
92 The Emotion Thesaurus: A Writer's Guide to Character Expression The Emotion Thesaurus: A Writer's Guide to Character Expression
Becca Puglisi & Angela Ackerman
93 Warlight: A novel by Michael Ondaatje  Conversation Starters Warlight: A novel by Michael Ondaatje Conversation Starters
Daily Books
94 Evicted: Poverty and Profit in the American City by Matthew Desmond:  Conversation Starters Evicted: Poverty and Profit in the American City by Matthew Desmond: Conversation Starters
Daily Books
95 Born Trump: Inside America’s First Family by Emily Jane Fox: Conversation Starters Born Trump: Inside America’s First Family by Emily Jane Fox: Conversation Starters
Daily Books
96 Webster's American English Dictionary (with pronunciation guides) Webster's American English Dictionary (with pronunciation guides)
Alice Grandison
97 365 Days of Happiness: Inspirational Quotes to Live By 365 Days of Happiness: Inspirational Quotes to Live By
M.G. Keefe
98 The World Encyclopedia of Pistols, Revolvers and Submachine Guns The World Encyclopedia of Pistols, Revolvers and Submachine Guns
Will Fowler, Anthony North & Charles Stronge
99 The Southerner's Handbook The Southerner's Handbook
Editors of Garden and Gun
100 The 21 Irrefutable Laws of Leadership The 21 Irrefutable Laws of Leadership
Instaread

The top 100 Reference books chart is updated daily using actual iTunes sales data.