Andrew Marttila, a pet photographer and kitten rescuer decided to see what would happen when he put out catnip for the stray cats in his neighbourhood. He also snapped some pics of the cats and kittens he would eventually foster/adopt, plus some other internet famous ones. The results showed that no matter how feral or tame, all cats enjoy 4/20!

He’s just released a book, ‘Cats on Catnip’ with these great photos and much more, order it here: