The more I look at the previews for this book, the more I love it.
This is exactly the kind of thing I had to do when I first learned other instruments as a kid to build that note/finger/pitch mental connection that eventually makes an instrument feel like part of your body. I would love to feel that way on ukulele someday, if my adult brain can still learn like that. Finger-picking exercises are only 1/7th of the book, but the other 6/7ths are all stuff I want to learn too!
It has music on a staff with tabs underneath, and in the baritone version it's transposed an octave from concert pitch so you don't have 50% of the notes dangling below the bottom of the staff.
And it's not meant to be a time-consuming complete course, it's just "here's your daily bit of brain/finger torture before you go do other kinds of playing" to gradually build skills without sacrificing fun in the process.
Ordered it. Paper copy, because it's probably going to end up covered pencil (note to self: buy pencils). This book looks AMAZING...