A very nice US currency redesign by Dowling Duncan.
When we researched how notes are used we realized people tend to handle and deal with money vertically rather than horizontally. You tend to hold a wallet or purse vertically when searching for notes. The majority of people hand over notes vertically when making purchases. All machines accept notes vertically. Therefore a vertical note makes more sense.
The note imagery relates to the value of each note:
$1 - The first African American president
$5 - The five biggest native American tribes
$10 - The bill of rights, the first 10 amendments to the US Constitution
$20 - 20th Century America
$50 - The 50 States of America
$100 - The first 100 days of President Franklin Roosevelt.
Needs more guilloche but other than that: fire up the presses.