Making slime is magical. Combine a few ingredients, mix by hand and suddenly a smooth (or fluffy, depending on the recipe) semi-solid, incredibly pliable but not-sticky goo appears. It begs to be touched. Poke, knead, pull on the toffee-like substance to achieve a calm state of mind. That's the meditative part of slime; it taps into the pleasure centres of the brain. Slime is also a visual feast: add food colouring, metallic paints, beads, glitter, even tiny toys to it. The result can look like ice cream or butter (don't eat it!); unicorn rainbow or galaxy goo; clouds, a fishbowl, Nutella--anything is possible. The Zen of Slime is a visual immersion into the sublime that is slime. Divided into themed chapters--air, water, fire and earth--the book features the Instagram artists who make and sell slime. They share their favourite photographs, recipes and tips. There's an endless variety of add-ins and different combinations of ingredients. Keeping track of this is as much fun as making slime, so notebook pages are included for jotting down potions. This is the next level of slime; sophisticated and artistic, for visionaries who recognise the special nature of this incredible stuff. (Or just enjoy looking at pictures of it).