Phillip Moffitt interviewed Bhikkhu Analayo on his approach to the Satipatthana teachings on mindfulness meditation. You can find that interview here: Venerable Bhikkhu Analayo on the Satipatthana Sutta
Bhikkhu Bodhi has an article on the four foundations of mindfulness that captures the main ideas of the Buddha’s teachings on mindfulness. You can find that article here: The Buddha’s Four Foundations of Mindfulness
You can find a translation of the Satipatthana discourse on the foundations of mindfulness here: The Buddha’s Original Teachings on Mindfulness