Earlier this month, sophomore Keira Chang released her children’s science book, “Marinara and Alfredo: How Do Rainbows Work?”, which became a No. 1 bestseller on Amazon in the Environmental Science Books and Children’s Light & Sound Books categories. In the book, two young scientists (Marinara the mouse and Alfredo the monkey) learn about the mechanics of rainbows. The book’s success caught the attention of KTVU FOX 2, which featured Chang in a segment last week.
Sophomore releases bestselling book, featured on KTVU FOX 2

The Harker Magazine
Published two times a year, The Harker Magazine showcases some of the top news, leading programs, inspiring people and visionary plans of the greater Harker community.
Get News via Email
Recent Posts
- Lower SchoolOctober 3, 2025
- UncategorizedOctober 2, 2025
- Upper SchoolSeptember 30, 2025
- Lower SchoolSeptember 29, 2025
- SchoolwideSeptember 25, 2025
- UncategorizedSeptember 24, 2025
- Upper SchoolSeptember 19, 2025
- SchoolwideSeptember 17, 2025
- Lower SchoolSeptember 15, 2025
- Upper SchoolSeptember 11, 2025