Hi Exhale,
I actually just wrote a book specifically for this age group called Money and Millennials: An Illustrated Advice Book.
This book is geared towards young people's communication preferences, a combination of Twitter meets Instagram. 30 pieces of succinct advice combined with high quality, fun illustrations. It's a quick read and has different categories of preparing, saving, investing, and earning.
And of course, the background is my home, Hawai'i!
It's a great gift for anyone graduating, their first job, saving for a house, etc.
I assure you the vibe is young but practical! Please see my signature for the Amazon link.