Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand different careers in computers. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers'' learning experience and introduce computer science careers in the real world. In this book, readers learn what web developers do as part of their job. This nonfiction book is paired with the fiction book We Make an App (ISBN: 9781508137740). The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.