Brahmavihara Dhamma

Brahmavihara Dhamma by Mahasi Sayadaw is an extensive instructional book from the monastaries of Bhurma. It was published back in 1983 and it presents full instructions on how to develop and a long series of practices like the four Brahmavihrara, metta, karuna, mudita and upekkha according to the original teachings by the Buddha. Download the ebook here (498 pages/1.7MB):

Brahmavihara Dhamma