From the book: ""excited" is a string, which is a sequence of characters." I'm not sure who this book is targeted at. While "a sequence of characters" is not a

From the book: ""excited" is a string, which is a sequence of characters." I'm not sure who this book is targeted at. While "a sequence of characters" is not an incredibly complicated phrase, it's also not very understandable to someone at the age when one typically reads picture books.