Essential Tips & Techniques From Glentress by Cordee Books is a handy pocket size guide to some of the best techniques around. Great whether you are a novice, & needing some basic tips & training, or a more experienced rider looking to develop your riding skills, this book has it all. Written by two former Wold Cup mountain bikers, Emma Guy & Tracy Brunger, this guide starts with basic bike set up right through to tips for effective biking.