Another book signing, another faboosh ensemble!
Putting a funky spin on business casual, the author posed for pictures at the Mondrian hotel in a Maje top with a lacquered tweed coat by Peter Som and dark rag & bone skinny jeans.
Jess finished off the look with a pair of lace-up Nicholas Kirkwood slingback sandals and left her shiny, ombre locks down.
This is turning out to be the best styled book tour ever!
[Image via Getty Images.]