(Book #3 of MiNRS)

Kevin Sylvester

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(Book #2 of Tom Swift Inventors' Academy)

Victor Appleton

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(Book #1 of Tom Swift Inventors' Academy)

Victor Appleton

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(Book #2 of Frankie Sparks, Third-Grade Inventor)

Megan Frazer Blakemore

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(Book #1 of Frankie Sparks, Third-Grade Inventor)

Megan Frazer Blakemore

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Martha Freeman

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(Part of Moon Base Alpha)

Stuart Gibbs

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(Book #5 of An Ada Lace Adventure)

Emily Calandrelli

$6.99

(Part of George's Secret Key)

Stephen Hawking and Lucy Hawking

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(Book #4 of An Ada Lace Adventure)

Emily Calandrelli

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Kat Zhang

$8.99

(Book #3 of An Ada Lace Adventure)

Emily Calandrelli

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(Part of George's Secret Key)

Stephen Hawking and Lucy Hawking

$5.99

(Book #2 of MiNRS)

Kevin Sylvester

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(Part of Girls Who Love Science)

Jeannine Atkins

$7.99

(Book #2 of The Flinkwater Chronicles)

Pete Hautman

$7.99

(Book #1 of An Ada Lace Adventure)

Emily Calandrelli

$6.99

(Book #2 of An Ada Lace Adventure)

Emily Calandrelli

$6.99

(Book #12 of Billy Sure Kid Entrepreneur)

Luke Sharpe

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(Part of Moon Base Alpha)

Stuart Gibbs

$8.99