An Ashtanga Yoga book by Sharath Jois, the current lineage holder of Ashtanga Yoga. This book is not that easy to find outside of Mysore, India and very difficult to find online. I have a small stock that I brought from Mysore, India myself. It's meant for Ashtanga Yoga ROOM Amsterdam students, but it's also possible to order this book online. It's 4th edition, from June 2018.
I have 2 languages available, Dutch and English (original). Dutch version is translated by Teune van der Wildt with blessings by Sharathji himself.