Useful Book

A standard visual gag almost always Played for Laughs.

Alice is looking for something. Maybe it's a new outlook on life, help with a homework problem, or maybe just her pen. Bob hands her a book, or suggests a book he doesn't have with him, and suggests she shouldn't take too long to finish with it, and before she can thank him or object, he's out the door.

Cut to Alice suddenly realizing the book in question is a Doorstopper - and Bob expects her to finish in half an hour. It might be a religious text, a very wordy legal document, a dictionary, an obscure scientific (or arcane magic) textbook, the phone book, a catalog with no index, possibly even a Tome of Eldritch Lore or Great Big Book of Everything - anything that normally would take longer than an hour or so to read through.

Later, it's revealed that Bob actually gave her the book:
 * To stand on to reach something.
 * To sit on, because the chairs are too low.
 * To put under her computer monitor.
 * To use its pages as toilet paper.
 * To prop open a door.
 * To Throw the Book At Them.
 * For use as a Pocket Protector.
 * To give her what's inside it
 * Or some other purpose other than to read it.

For more book-themed humor, see:
 * As the Good Book Says...
 * Bookworm
 * Doorstopper
 * Throw the Book At Them.

Compare It May Help You on Your Quest, Magic Feather, and Pocket Protector, where other objects are used for purposes other than for what the audience may have been led to expect. Contrast "Reading Is Cool" Aesop.

Advertising

 * The Yellow Pages used this at least once, with a small boy standing on a copy to kiss a slightly taller girl.

Film

 * In Evil Dead II, Ash uses Ernest Hemingway's A Farewell to Arms to weigh down his possessed, amputated, killer hand. Give it a second...
 * In Iron Man 2, Tony's SHIELD watchdog uncovers a partially completed red, white and blue shield with a star in the center. Tony exclaims "that's perfect! Just what I need!" and then uses it to prop up the Particle Accelerator he is working on. "Perfectly level," he says, pleased afterwards. It should be noted that there are multiple actual books also being used to prop up the particle accelerator. (As well as several of his cars, a motorcycle, and pretty much everything else in his lab.)
 * In Wagons East, a man goes into a bookstore and asks for "a big damn book". The proprietor offers a copy of Pride and Prejudice. The man tears several pages out and makes for the outhouse.
 * In Die Another Day, Q gives James Bond the Doorstopper manual of his new car. Bond throws the book in front of the car, triggering the shotguns under the hood which promptly shoot it to confetti.
 * In Mirror Mask, Books are used as food for sphinxes (as they love to eat the pages, and get distracted by a good book) and to fly on (they return to the library when insulted and thrown with great force). There's also the Really Useful Book, which dispenses good advice but becomes this trope when,.
 * In Without a Clue, a clue requires a Bible. Sherlock Holmes exclaims "I have a Bible!" and runs and gets it out from under one of the legs of his bed.
 * Inverted in Ricochet, where the villain asks for a large bible from the prison reading cart ... to use as a prop to force his shattered knee back into alignment.

Literature
"Nomad: What is it that a man may call the greatest things in life? Cohen: Hot water, good dentishtry and shoft lavatory paper."
 * Brother Oates does this to himself in Carpe Jugulum. He consults his holy book for advice while freezing to death in a downpour, which leads him to realize that what he really needs is kindling.
 * Also, the Doorstopper book How To Kille Insects.
 * Cohen the Barbarian can't read very well, but he thinks a book is always valuable equipment, especially one with thin pages.

"But perhaps the book had other virtues. Maybe, just maybe, this 1,168 page book could save someone's life if they were being shot at. Just to make one thing clear: I, in no way, advocate the use of fire arms to maliciously deface intelectual property. I wouldn't have tried this on The Scarlet Letter which is 272 pages and which I equally disliked. I was going to shoot The Stand in the name of Science and public safety. The answer is no, my friends. 1,168 pages are not enough to save your life from a .45 slug."
 * Lampshaded by one book reviewer at goodreads.com:


 * Averted in The Recruit. James and Kerry find a copy of the Complete Works of Shakespeare in the pack they're expected to carry through a tropical jungle. Naturally they throw it away to save weight, only to later realise that they were supposed to keep at least part of it for use as toilet paper.
 * In Harry Potter, Professor Flitwick, who is very short, frequently sits or stands on top of books so he can see the whole classroom. Though being a Hogwarts professor, he definitely uses books for their intended purpose as well.

Live-Action TV
""Dick Cheney's written a memoir of his life, a thousand pages. You can actually use it to stand on to reach a better book." "Sarah Palin has finished her book. It's a big book, over 400 pages. So when you go into the bookstore you can use it to stand on to reach a better book." And again, with George W. Bush's memoir."
 * In the Hancock's Half Hour TV episode "The Missing Page", a librarian is impressed when Hancock asks for some weighty intellectual tomes, only to discover that Hancock just wants to stand on the books so he can reach a sleazy crime thriller on the top shelf.
 * Cited a few times by David Letterman:

""How do they put budgies down?" "Well, it's funny you should ask, because I've been reading a great big book on how to put your budgie down, and apparently you can either hit them with the book, or shoot them just above the beak.""
 * From Monty Python's Flying Circus:


 * In Home Improvement, Jill mentions that she gave Tim a copy of The Feminine Mystique, but that he uses it to prop up his workbench. Subverted later on, though, when Tim reveals that he did read it (he mis-refers to it as The Feminine Mistake, but the point still stands).

Newspaper Comics

 * Dennis the Menace US: "But it is a 'good book'... to stand on!"
 * In Zits, Pierce's favourite book in the school library is Atlas Shrugged, which he uses as a pillow.
 * In one FoxTrot comic, Paige asks to borrow one of Andy's favorite books. Andy is excited and happy until Paige returns with the book two seconds later, explaining that she just needed it to kill a spider.
 * A similar comic had her remarking on Peter borrowing a bunch of books like the encyclopedia set and dictionary; it turns out he was just changing a light bulb.
 * Garfield: "Books are very important. I'm sitting on one to get a better view of the T.V."
 * In an early strip of Shoe, Skyler uses a Camper's Guide to start a fire. Literally.

Theatre

 * In Moliere's play Les Femmes Savantes (The Learned Ladies), the character Chrysale reproaches his sister and women of the day in general for neglecting common sense and ordinary household duties in her obsession with their studies. He says that all of her books are useless, except for a big Plutarch which he uses to put his bands in to keep them flat.

Video Games

 * In Super Paper Mario, you get a clue in a scroll to find an old treasure.

Web Comics

 * Done in this Drowtales parody.
 * In one Brawl in the Family comic, Waluigi takes out a large book from the library, only to eat it in the last panel. (It's the seventh one on the page.)

Web Original

 * In season two of RWBY Chibi, Yang and Ruby ask Blake for some books. Blake, being the bibliophile she is, goes wild handing out cherished and favorite volumes from her collection.  And then we see that Ruby and Yang are using them to build forts and fight a mock battle.

Western Animation

 * On the Looney Tunes Wartime Cartoon "Brother Brat", a woman gives Porky a child psychology book to help him take care of her little boy. After the child runs amok even after Porky has followed every bit of advice in the book, the mother shows him the proper use of the book... to spank the daylights out of the brat.
 * The MGM Barney Bear cartoon "Wee Willie Wildcat" had a similar plot.
 * One episode of Disney's Hercules used this both ways. A professor told Herc to beat an opponent with a scroll, so Herc threw it at the guy hard enough to win. At the end of the episode they run to the library and while the professor evaluates the scrolls on the basis of their weight Herc looks up the opponent's weakness.
 * A Veggie Tales music video of "A Modern Major General" has Archibald Asparagus singing the song and constructing a staircase of tomes in time with his singing.
 * The Magic School Bus: Ralphie asks D.A. if he can borrow her new physics book. She does not appreciate finding out he used it to replace the missing first base. Never treat a Bookworm's book like a piece of baseball equipment!