Junky is a 2016 artbook by French comic book artist, illustrator & concept artist Guillaume Singelin, published by Peow Studio, that showcases his art, illustrations, and sketches. The book includes a lengthy interview and commentary from the artist throughout.

This is from Peow's very first run of releases. Out of print.

A 2016 post from the publisher:

Junky is finally sent off to the printer! Art and illustrations by Guillaume Singelin. It's the first book to be released as a reward from our kickstarter campaign. It's been so much fun to go through heaps of illustrations from Guillaume and to make somewhat of a selection (though to be honest I've just tried to cram as much of it as possible into the book) from almost four years worth of pictures.

It's 220 pages long with a 32 page full color section. A conversation with Guillaume all through the book where we talk about the pictures and concepts and ideas behind it all. We've also tried to keep the illustrations as close to the original images as possible and have print the majority of the book in two colors, one red layer that is the original red pencil sketches, and the final inks in the second layer.