For those interested on expanding their knowledge in Grasshopper, technical forms and new plug-ins is not the only way! Paramentric thinking is about mindset.
This book is a a great opportunity for anyone interested to get into the mathematical way of nature! This book provides a handbook of algorithmic recipes designed to be accessible, usable, and understandable. Most of the algorithms described in this book were originally inspired by biological and natural systems, such as the adaptive capabilities of genetic evolution and the acquired immune system, and the foraging behaviors of birds, bees, ants and bacteria. An encyclopedic algorithm reference, this book is intended for designers, engineers, researchers, and interested amateurs. Download the book here .
P_Wall (2009) was commissioned by the 
digitaldesigntools 