The Sanskrit Alphabet consists of 56 Letters.
There are Vowels, Semivowels, Consonants, Sibilants and the Aspirate. Additionally we have the Vedic letter for "da" and the Vedic Ayogavahas and Accents.

Letters are clearly divided into groups and Enunciation is closely connected to Tongue movement. Nasals lend a distinct twang and the Vedic chants are a delight to hear because of Accentuation of the Vowels.

Reading an Avagraha, Ayogavaha, Visarga and
Anusvara is clearly explained as all letters of the
alphabet are laid out threadbare.

A relevant and complete book for the novice, the amateur or the Scholar.