One More BookFind a book
Cover of Worst Week Ever! Monday
Illustrated · ages 8–11

Worst Week Ever! Monday

Written by Eva Amores · Illustrated by Matt Cosgrove

Book 1 in Worst Week Ever!View the full series

Top giftable

The riotous, photo-and-cartoon-packed opener to the day-by-day comedy series about Justin Chase, an unlucky kid whose first day at a new school spirals from bad to catastrophic. Frantic, gross and very funny — catnip for reluctant readers who love Diary of a Wimpy Kid.

  • Best for8–11
  • FormatIllustrated
  • Length192 pp
  • Read aloud~1 hr15 min
Where to buyPaperback
WaterstonesIn stock
£7.99
Buy
Amazon
See price at Amazon
Buy

Affiliate links — buy through these retailers and we earn a small commission, at no extra cost to you.

The vibe

What it’s like.

Style

  • Comedic
  • Conversational

Tone

  • Funny
  • Silly
  • Irreverent
  • Absurdist
  • Exciting

Themes

On the pagestarting a new school, embarrassment, bullies, toilet humour, blended family, missing pet

Experience meters

Energy5/ 5
Humour5/ 5
Scariness1/ 5
Peril2/ 5
Wonder2/ 5
Cosiness1/ 5
Emotional intensity2/ 5
Conceptual intensity1/ 5

What’s it about?

The story.

Meet Justin Chase, a boy convinced he is having the Worst Week Ever. On Monday his mum drops him at his dad's house on the way to her honeymoon with a new husband Justin is sure is a vampire, his dad drives a giant toilet on wheels and is on a green-food-only health kick, his sweary crocheting Nan has moved in, and his beloved cat has vanished (abducted by aliens, obviously). Then there's the first day at his new school, where a bully makes his life a misery and swimming class ends with Justin dangling off a ten-metre diving tower in nothing but a rapidly unravelling crocheted swimsuit. Told in a manic mash-up of text, cartoons and photographs, this is the launch of the globally bestselling seven-part series — one book for each day of a truly disastrous week. Fast, daft and packed with slapstick and toilet humour, it's built for readers who devour Tom Gates, Diary of a Wimpy Kid and the Treehouse books, and it turns even the most reluctant reader into a page-turner.

Fit check

Right for your child?

Where it lands by age

Pitched at 8-11s reading independently, with the visual, joke-a-page format making it very friendly for reluctant readers and confident readers as young as seven or eight. It works read aloud but really shines as a book a child devours alone.

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 8–11
  • Read aloud · 7–10
  • Independent · 8–11

Prose load

Light

Visual support

Very high

Reluctant-reader friendly

Very

Read-aloud quality

Workable

Works well for

  • Reading together
  • Gift-buying
  • Reluctant readers
Low sensitivityNo content warnings

Nothing in the book is likely to concern most parents. Safe to recommend without preview.

Bedtime suitability

2 / 5 · Better outside bedtime

Sensitive-child

3 / 5 · Mostly fine

Graphic intensity

1 / 5 · None

Best for

  • Reluctant readers
  • Funny disaster comedy
  • Toilet humour
  • Wimpy kid fans

Avoid if

  • Wants gentle bedtime
  • Dislikes gross out humour

Particularly good for children who are…

  • Reluctant reader
  • Starting school
  • Being bullied
  • New step parent or blended family

Why it lands

Why they love it.

Why kids love it

Justin's Monday is a non-stop pile-up of gross, mortifying catastrophes, from a vampire stepdad to a swimsuit that unravels in front of the whole class. The manic mix of cartoons, photos and short bursts of text makes every page a laugh and a dare to keep going.

  • The underdog winning
  • Surviving danger
  • Breaking the rules safely

Why parents love it

The relentless visual comedy and bite-sized text carry even the most reluctant reader through a whole book, and the day-by-day hook keeps them coming back for the next one. It's harmless slapstick with a likeable underdog hero.

  • Shared humour
  • Quick to read

In the series

Worst Week Ever!.

7 books · open the series →

About the creators

About the creators.

EA

Eva Amores

Writer · Australia

Eva Amores is a Filipino-Australian author, designer and photographer, based in Sydney, who co-creates the globally translated Worst Week Ever! series with her husband, the author-illustrator Matt Cosgrove. Born in the Philippines and educated in Australia, she worked in design and photography — including for the Sydney Opera House and the ABC — before turning to children's fiction. Worst Week Ever! chronicles hapless Justin Chase's spectacularly disastrous week one book at a time, told in a manic mash-up of text, cartoons and photographs. Fast, daft and stuffed with slapstick, gross-out gags and running jokes, the seven-part series is built to turn reluctant readers into page-turners, sitting comfortably alongside Diary of a Wimpy Kid, Tom Gates and the Treehouse books. Reliable, high-octane comedy for 8–11s.

More from Eva Amores
MC

Matt Cosgrove

Writer & illustrator · Australia

Matt Cosgrove is an Australian author-illustrator based in Sydney, best known for the bestselling Macca the Alpaca picture books and, with his wife Eva Amores, the globally translated Worst Week Ever! series. A former magazine creative director with a first-class design degree, Cosgrove brings a slick visual comic energy to Worst Week Ever!, which chronicles Justin Chase's spectacularly disastrous week one day at a time, in a manic mash-up of text, cartoons and photographs. Fast, daft and stuffed with slapstick, gross-out gags and running jokes, the books are built to turn reluctant readers into page-turners, and sit comfortably alongside Diary of a Wimpy Kid, Tom Gates and the Treehouse series. Reliable, high-octane comedy for 8–11s who want laughs on every page.

More from Matt Cosgrove

If you liked this

Three ways out of this book.

If you liked this, try…

Lateral matches. Same shelf, different texture.

Where to go next…

Escalation reads — a step up in scale, silliness, or stakes.

Last reviewed · July 2026Suggest a correctionHow we recommend

More ways to wander the room