The document discusses the classification of consonants according to their manner and place of articulation in English. It describes the key articulators involved in producing different consonant sounds and lists examples for each major manner and place category. The main manners described are plosives, affricates, fricatives, nasals, laterals, trills, and semi-vowels. The major place categories outlined are bilabial, labiodental, dental, alveolar, palato-alveolar, palatal, velar, and glottal. A table provides examples of consonants classified by both manner and place of articulation.