A series of books following the eponymous Time Warp Trio: Joe, Sam, and Fred, three unlikely best friends who, thanks to the help of Joe's bumbling uncle magician's birthday present to Joe - a book that allows the boys to get warped into different aspects of history - get into wacky adventures, ranging from the far future, to the age of the dinosaurs. It would be nice, except people seem dead intent on causing the boys nothing but most-likely-lethal trouble wherever they go. And the boys would very much like to stop ending up in random places, and get home in time for dinner.
This contains examples of the following tropes:
Art Evolution/Art Shift: The series changed artists around "Sam Samurai", and the art style becomes markedly different, switching from overexaggerated cut-out styled near-abstractions, to moderately exaggerated cartoon characters.
"See You Later, Gladiator" has the boys introduce professional wrestling to the Romans, as an alternative to having to stab and kill a fellow slave.
Because Destiny Says So: In "See You Later, Gladiator", the Vestial Virgins spare Sam, Joe, and Fred, as well as allow them enough time to get back home. When one of the boys ask why, one of the Virgins pulls out a prediction that details the boys' entire trip to Rome.
Family-Unfriendly Death: Would have happened to the boys in "Tut, Tut" - the main villain turns them into living-but-not-prepared-for-embalming mummies and trigges a trap door that sends several tons of rocks completely encasing the room the boys are in, trapping them in the sarcophaguses. If the rocks didn't crush them and they didn't die of starvation and dehydration, they'd die of asphyxiation. Fortunately, one of the boys' nieces has a cat that finds the book in the rubble...
"See You Later, Gladiator" has the boys avert this. Normally, their fight with their companion should end in death - but they then introduce professional wrestling (not pankration, professional wrestling) to the Romans.
I Shall Taunt You: Fred employs this against the Black Knight in Knights of the Kitchen Table, reasoning that trying to spear them while wearing tons of armour will wear him out. He's right.
Made a Slave: The boys in "See You Later, Gladiator", as well as their guide, who they try to help win freedom.
Mr. Exposition: Actually justified in-universe: the book has a "guide" option that not only turns normally hostile people into, well, guides for whoever uses it, but will also help them point out features of the era and install a Weirdness Censor, so people don't ask why there are three kids in the most bizarre clothing running about in foreign countries. It saves their life a few times, as their "guides" included a samurai who was about to slice off their heads for trespassing.
Unfortunate Names: Once a book. Hatsnat (pronounced "Hot Snot"), Owattabatt (pronounced "Oh, what a butt"), and so on. Each time, it usually gets the nearly killed or in trouble. For example, the boys are discovered eavesdropping on Hatsnat's plans to become great and powerful by trying not to laugh at his name, and the boys are nearly executed by Owattabatt (a samurai) for bursting into laughter at his name.
A helpful servant of the Emperor in "Sam Samurai" is literally named "Silly Elephant". The samurai that guides around the boys is befuddled.
We Will All Fly in the Future: In "2095", personal anti-gravity discs the size of large lapel pins are commonplace, and worth only a few cents (when a slice of pizza is over a hundred dollars).
Word Salad Humor: When Owattabatt is about to execute the boys in "Sam Samurai", his deadly threat is as such: "Now you will bark bark meow meow oink oink." It's justified in-universe: the time-travelling book has language options that automatically translate for the travelers, and the book decided to go on the fritz.