, Anapanasati Sutta, contains the canonical description by the Buddha of mindfulness of breathing.DN 22
, Maha-satipatthana Sutta, contains the canonical description by the Buddha of the four foundations of mindfulness.
Upasika Kee Nanayon: Breath Meditation Condensed
Thanissaro Bhikkhu: Basic Breath Meditation Instructions
and the much more detailed With Each and Every Breath
Ajaan Lee Dhammadharo: Keeping the Breath in Mind
Mahasi Sayadaw: Satipatthana Vipassana
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