The document defines Tajweed as articulating letters correctly from their articulation points and giving each letter its proper characteristics. It discusses the importance of learning Tajweed to properly recite the Quran. It describes the 17 articulation points in the mouth, throat, tongue, lips and nasal passage. It provides detailed explanations of each letter's articulation point, including diagrams to illustrate points on the tongue, teeth, throat and lips. References for further learning Tajweed are also included.