Idealliance (Alexandria, Virginia) has released Volume 21 of its Guide to Print Production “packed full” of leading practices, standards and specifications for print and packaging. The organization added that this most recent edition marks “a new milestone” for its Guide to Print Production, as the popular publication will now be offered as a textbook, printed on-demand and designed to serve as the definitive reference guide to the critical science of colour reproduction. It was created by the Idealliance Print Properties Committee – composed of professionals from brands and print buyers, creative and design, print service providers, and manufacturing and technology partners – as an “everyday resource” to be used in creation and production. The practical handbook is for anyone invested in the process of printed communications. At the heart of this guide are the standards and specifications that make colour possible and practical, said Idealliance. For example, the guide includes Idealliance’s G7 specification, the world’s leading colour specification, along with other science-based approaches to accurate, repeatable colour reproduction. Using G7 and related processes explained in this guide “will move every member of the print supply chain towards greater efficiency and profitability.” The book is organized into three parts. The first covers basic information about colour print reproduction and is designed specially to benefit students and newcomers to the industry. The second part lays out the work of Idealliance and its standards-development, training and certification programs to improve professional competency and workflow efficiency. The third part is the core of the