Textbooks are the most boring thing for a student. All those facts, all those graphs and all those diagrams are dense and utterly boring. Textbooks are actually written by real human, but they seem like they’re written by robots. However, the authors of books listed below tried to inject a modicum of humor into dry textbooks. Some of them appear to be officially approved. Others appear to be subtly hidden where nobody will find them, but all of them are guaranteed to make you laugh.

#1 Found This On The First Page Of My Stats Textbook

#2 Well Played, Biology Textbook. I See What You Did There

#3 Found In My Web Design Textbook

#4 I Better Learn This Just In Case

#5 Just Saw This Written On The Back Of A Textbook

#6 Textbook Level: Chernobyl

#7 So In My Spanish Textbook This Kid Calls A Girl To Ask Her What Her Phone Number Is

#8 A Woman Saying “Hello” In French To A Couple In A Bush

#9 Found Something Odd In My Engineering Textbook

#10 Found This Gem In A High School Sex Ed Textbook

#11 Wait…What?

#12 Uhm, Best Textbook Picture Ever?

#13 Invisible Man

#14 Found In My Little Brother’s Textbook

#15 Hidden Gem In The Back Of The Textbook

#16 And Then Suddenly, In The Back In My Textbook

#17 Tiger Has Seen Some Terrible Things In Prison

#18 My Friend’s French Textbook Tried To Explain Colours, Forgetting That It Was In Black And White

#19 Quick Little Joke In My Psychology Textbook

#20 Found This In My Physics Textbook

#21 Fire, The Second Safest Way To Travel

#22 That’s An Interesting Question, Math Textbook

#23 Chemistry Humour

#24 My Economics Textbook Is Somewhat Pessimistic

#25 My Psych Textbook Speaks The Truth

#26 This Was In My Friends Biology Textbook

#27 This Color Blindness Test In A Textbook

#28 I Don’t Think That’s Quite How Puberty Works

#29 Statistics Textbook Making Fun Of A Crippling, Destructive Disease

#30 American Nuclear Family

#31 So I Was Reading My Chemistry Textbook

#32 This Theory

#33 Just Found This Little Gem In My Physics Textbook

#34 I Found This In My Friend’s Textbook. Enjoy

#35 Word ‘Trouble’ In A Racist German Dictionary

#36 I Think My Textbook Is Trolling Me

#37 Tom Who Is About To Show Something Interesting

#38 Art History Textbook Without Any Art

#39 Was In My Chemistry Textbook, And I Found It Amusing

#40 This Chinese Textbook

#41 An Illustration From My English Textbook In Korea. I’m No Longer Certain What I’m Teaching

#42 This Is From A College Human Sexuality Textbook

#43 Lex Luthor

#44 The Students In My Textbook Are Holding The Textbook They Are Modeling For

#45 Experiences “That Might Not Be Advisable In Real Life”

#46 I Didn’t Know Egypt Was In South America, I Learn So Much From My Textbooks

#47 I Teach 2nd Grade Science In China And This Was In Our Textbook

#48 Good One, Math Textbook, Good One

#49 Found A Very Sad Man In My Social Psychology Textbook

#50 Fight

#51 From A Textbook Printed In 2010

#52 This Is An Actual Problem From A Physics Textbook

#53 Get Out Of My Psychology Textbook

#54 Well Played, Math Textbook

#55 My Textbook Is Fun

#56 So This Is In My Psychology Textbook

#57 Expensive Textbook Using Watermarked Istock Photos

#58 Spent Over $100 On A Textbook And This Is What I Got

#59 Easy Way To Remember The Colors

#60 Hybridisation

#61 Found This In My Corporate Finance Textbook

#62 This Image In My Physics Textbook Is Really Useful

#63 This Textbook Drawing

#64 Found This In My Physics Textbook

#65 From My Physics Textbook. Enjoy

#66 This Was In My Microbiology Textbook

#67 Found This In My Educational Psychology Textbook. Is This Racist?

#68 This Geography Textbook

#69 Sexiest Rectangle In The Math Textbook

#70 Found In Physics Textbook