Our Imprints

Our Imprints

Grasshopper Books

Grasshopper offers fun, playful titles that connect with young readers’ interests while also teaching them about curriculum-aligned subjects. Colorful, fully-illustrated spreads appeal to a child’s imagination, and carefully leveled text supports literacy development and ensures a successful reading experience for emergent and early-fluent readers.

Grasshopper Books are organized in three levels so educators can be confident that the subject matter, text load, and design features are on-target for their young readers. Relatable characters and engaging narrative stories tie in to school curriculum and focus on science, language arts, SEL topics, and more.

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Watch our Grasshopper Books trailer to learn more.


  • Reading Level: PreK-3
  • Interest Level: PreK-5
  • ATOS Level: 0.7-3.5
  • GRL: A-P
  • Word Count: 100-450
  • Pages: 16-24
  • Trim: 7.75" x 7.75"


  • Table of Contents
  • Glossary
  • Quiz Time! / Let's Review section
  • Tools for Parents & Educators
  • Index


Tadpole is designed for students learning to read. With official F&P levels of A-E and ATOS levels of 0.5-0.9, Tadpole books are the perfect first nonfiction reading experience.

Developed to support reading instruction, each book features predictable and repetitive text patterns and includes high-frequency and familiar content words. Age-appropriate subjects, vibrant photographs, and thoughtfully crafted text help the youngest students learn to read their very first nonfiction books.

Tadpole also offers a “Tools for Teachers” page at the beginning of every book, which includes:

  • Skills to teach: punctuation, text type, phonics, high-frequency and content words
  • Before and After reading activities
  • Curriculum connections

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  • Reading Level: Grade PreK-K
  • Interest Level: Grade PreK-1
  • ATOS Level: 0.5–0.9
  • F&P: A-E
  • Word Count: ~60
  • Pages: 16
  • Trim: 6.5″ x 9″
  • Nonfiction


  • Table of Contents
  • Words to Know
  • Index
  • Close photo/text match
  • Consistent text placement on the page
  • “Tools for Teachers” offering supports for reading instruction

Bullfrog Books

Our first imprint, Bullfrog Books, is designed for beginning readers in grades K-2. With ATOS levels of 1.0 or lower and Lexile levels between BR and 320L, these low-level, high-interest titles help young readers bridge the gap of understanding between the text on the page and its reference to the world.

Developed to support the goals of the Common Core Reading Standards for Informational Text, Bullfrog Books help readers understand key features of text, build vocabulary, identify main topics and themes, and explain how images contribute to and clarify a text. Each Bullfrog title offers strategies for teachers, parents, and other adults to increase literacy skills, improve book knowledge, and instill a love of reading in children.

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Watch our Bullfrog Books trailer to learn more.


  • Reading Level: Grade K
  • Interest Level: Grade K-3
  • ATOS Level: 1.0 or lower
  • GRL: D-F
  • Word Count: ~100
  • Pages: 24
  • Size: 7.75″ x 7.75″
  • Nonfiction


  • Full-color photographs
  • Carefully leveled text
  • Table of contents, picture glossary, diagrams, index
  • Reading tips for teachers and parents
  • Factsurfer.com safe search engine


Pogo books are written for children in grades 2-5 focusing on STEM and Social Studies topics. Each book is broken into three chapters and provides back matter that includes a glossary, index, and online access to curated web sites. Designed for early fluent readers, each Pogo title offers strategies for teachers, parents, and other adults to increase literacy skills, improve book knowledge, and instill a love of reading in children


Pogo STEM books are designed to get children interested in science, technology, engineering, and mathematics topics as they practice navigating increasingly complex nonfiction narrative formats. High interest topics such as robots and natural disasters are tied to STEM curriculum and the Next Generation Science Standards to create books that are both educational and fun to read.

Pogo Social Studies

Pogo Social Studies focuses on key social studies and C3 (College, Career, and Civic Life) curriculum topics, prompting inquiry and encouraging children to take action. These books are designed to heighten awareness of our changing cultural and physical environments, to understand the past, to think deeply about the issues we currently face, to act in ways that promote the common good, and to create knowledgeable an active citizens.

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  • Reading Level: Grade 2
  • Interest Level: Grade 2-5
  • ATOS Level: 2.7–2.9
  • GRL Range: I-M
  • Pages: 24
  • Size: 7.5″ x 9″
  • Nonfiction


  • Word count of ~450 Infographics, including maps, diagrams, graphs
  • Labeled images
  • Sidebars that extend and expand upon main text content
  • Activity or experiment to extend learning
  • Glossary, index, & curated web sites
  • Carefully controlled text

Blue Owl Books

Blue Owl Books focuses on health, wellness, and social and emotional learning (SEL), covering topics that will plant the seeds for academic success and a meaningful and healthy life.

Each Blue Owl Books series introduces topics that will help children develop the ability to recognize and understand their emotions, feel empathy for others, make good decisions, manage stress, establish positive relationships and cultivate a growth mindset.

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  • Reading Level: Grade 2-3
  • Interest Level: Grade 2-5
  • ATOS Level: 2.4–3.8
  • GRL Range: H-I
  • Pages: 24
  • Trim: 7.5″ x 9″


  • Tips for Educators and Caregivers, including SEL goals
  • Fun Facts and Helpful Tips Sidebars
  • Grow with Goals
  • Writing Reflections and Activities