Buddhist Hybrid Sanskri is not a deteriorated Sanskrit (as many believed at the discovery of Buddhist texts in Sanskrit), but, following the theoretical foundations underlying the pioneering work of Franklin Edgerton, a language with its grammar and vocabulary sui generis implemented rather consequently, which for a long period of time was used to spread the teaching of Buddha. The Reader is meant as a textbook for advanced students with an interest in non-standard Sanskrit and Middle Indo-Aryan. A substantial novelty of the Reader is that it includes extracts from representative texts either recently critically re-edited on the basis of new manuscripts or from the texts unknown at the time of Edgerton's publications. All extracts are accompanied by commentaries explaining their grammatical peculiarities as well as by selections of specific lexical items.