Sale price
$1797
Book #3 · Picture Book · Ages 4–8 · 2022
Yetis Are the Worst!
By Alex Willan
A goblin's quest to find a yeti reveals unexpected truths in the frozen tundra.
40 pages· 465 words· Est. 4 min read-aloud
$18.99Save 5%
Hardcover
Book Series · 6 Books
The Worst Books
In order from Yetis Are the Worst! to Valentines Are the Worst!.
The Worst series is a set of 6 picture books by Alex Willan, published between 2015 and 2025. Written for ages 4–12, most books run about 40 pages.
Where the story begins
First Book in the Series
In reading order
The Worst Series
6 books · Published 2015–2025
#3
Sale price
$1797
Yetis Are the Worst!
Picture Book · Ages 4–8 · 2022
A goblin's quest to find a yeti reveals unexpected truths in the frozen tundra.
#4
Sale price
$1797
Elves Are the Worst!
Picture Book · Ages 4–8 · 2023
A goblin infiltrates Santa's workshop to outwork the elves. Can he succeed?
Sale price
$1348
The Worst Class Trip Ever
Chapter Book · Ages 8–12 · 2015
Middle schoolers' trip to D.C. spirals into chaos with a potential threat to the president.
Sale price
$1348
The Worst Night Ever
Chapter Book · Ages 9–12 · 2016
A missing ferret leads to a high school party with a deadly secret.
Sale price
$1899
Mermaids Are the Worst!
Picture Book · Ages 4–8 · 2025
A goblin's vacation turns chaotic when mermaids crash the party. Can peace be restored?
Sale price
$1899
Valentines Are the Worst!
Picture Book · Ages 4–8 · 2025
A goblin dodges cupids' arrows, questioning if love can be avoided.
Good to know
Common Questions
How many books are in the Worst series?
There are 6 books in the Worst series. It began with The Worst Class Trip Ever in 2015, and the newest book, Valentines Are the Worst!, was published in 2025.
What order should you read the Worst books in?
Start with Yetis Are the Worst! and follow the series order — the books above are numbered #1 through #6.
What ages are the Worst books best for?
The series is best for ages 4–12, based on the age ranges of the individual books.
Which Worst book is the longest?
The Worst Night Ever is the longest book in the series at 45,797 words (256 pages).
Which Worst book is the shortest?
Valentines Are the Worst! is the shortest at 254 words (40 pages).
The people
The Creatives Behind the Books
The people who bring The Worst to life.
Keep exploring
Similar Series
Small Spaces
Ages 9–12
Framed!
Ages 8–12
Wishmakers
Ages 8–12
The Adventurer's Guide
Ages 8–12
Peter and the Starcatchers
Ages 9–12
Half Upon a Time
Ages 8–12
A Series of Unfortunate Events
Ages 8–12
Royal Academy Rebels
Ages 8–12