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Penguin Core Concepts

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Related Series: The 39 Clues: Doublecross
The Penguin Core Concepts book series by multiple authors includes books Elephant Twins, Hard Hat Zone, Warning: Wild Weather Ahead, and several more. See the complete Penguin Core Concepts series book list in order, box sets or omnibus editions, and companion titles.
17 Books
Elephant Twins - Book of the Penguin Core Concepts

Elephant Twins

Richard Sobol
From $12.29
Hard Hat Zone - Book of the Penguin Core Concepts

Hard Hat Zone

Theo Baker
From $5.09
Warning: Wild Weather Ahead - Book of the Penguin Core Concepts

Warning: Wild Weather Ahead

Theo Baker
From $6.39
Rattler - Book of the Penguin Core Concepts

Rattler

Mary Batten
Out of Stock
Worm Weather - Book of the Penguin Core Concepts

Worm Weather

Jean Taft
From $4.69
Fly, Butterfly - Book of the Penguin Core Concepts

Fly, Butterfly

Bonnie Bader
From $5.19
Foreman Farley Has a Backhoe - Book of the Penguin Core Concepts

Foreman Farley Has a Backhoe

Jenny Goebel
From $4.29
George Ferris, What a Wheel! - Book of the Penguin Core Concepts

George Ferris, What a Wheel!

Barbara Lowell
From $4.19
Foreman Frankie Is Handy - Book of the Penguin Core Concepts

Foreman Frankie Is Handy

Jenny Goebel
From $9.59
Hummingbirds - Book of the Penguin Core Concepts

Hummingbirds

Bonnie Bader
From $5.79
The Firefighter - Book of the Penguin Core Concepts

The Firefighter

Jenny Goebel
From $4.59
Spin - Book of the Penguin Core Concepts

Spin

Rebecca Janni
From $11.59
Helicopters - Book of the Penguin Core Concepts

Helicopters

Nick Confalone, Chelsea Confalone
From $9.69
Fine Life for a Country Mouse - Book of the Penguin Core Concepts

Fine Life for a Country Mouse

Susan Detwiler
From $8.19
Pins and Needles - Book of the Penguin Core Concepts

Pins and Needles

Stephen Krensky
From $5.39
Terrific Trains - Book of the Penguin Core Concepts

Terrific Trains

Dennis R. Shealy
From $6.39
Pins and Needles Share a Dream - Book of the Penguin Core Concepts

Pins and Needles Share a Dream

Stephen Krensky
From $5.19
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