For Bookworm, Paul Smith transports you to your own personal library, surrounded by a crackling fire in a wood-panelled room sat on a comfy leather sofa.

It smells like reams of paper and parchment, library shelves and warming amber. It features notes of grapefruit and cedarwood, as well as Jamaican pimento berry oil and Haitian vetiver oil from LMR Naturals, a laboratory in Grasse which produces some of the highest quality all-natural raw materials in the world. 

Perfumer: Céline Barel

Refill instructions: Carefully open the bottle containing the liquid and slowly pour its entire contents into the glass vessel. Next, place the collar on top and insert the reeds. You might find that it takes up to 24 hours for the reeds to fully absorb the fragrance. For best scent diffusion, place in a room with good air circulation and try turning the reeds every now and then.