A good way to start is by getting acquainted with the principles of Yoga as taught by the “father of modern yoga” Sri T. Krishnamacharya and as they are expressed here in the following educational posters/diagrams.
Educational posters can be ordered from us in high resolution to be printed out on A-3 format and so used for personal practice and teaching.
THE PRINCIPLES OF YOGA 
THE PRINCIPLES OF PRANAYAMA 
THE PRINCIPLES OF USING MANTRA IN YOGA PRACTICE 
THE PRINCIPLES OF YOGIC RITUAL OR PUJA 
THE PRINCIPLES OF ASANA PRACTICE 
THE PRINCIPLES OF YOGIC MEDITATION, OR DHYANA