This document provides an introduction to the consonants of the Tibetan language. It includes: - A chart showing the Tibetan characters alongside the Wylie transliteration and pronunciation of each consonant. - Explanations of pronunciation rules for different columns of consonants, including tones (high and low) and aspiration. - Notes on nasal and other consonant sounds. - An indication that future lessons will cover how the pronunciation has evolved since the fixed orthography was established in the 11th century.