According to etymological evidence, the term "pharmacognosy" alludes to the understanding of drug (Pharmacon) substances (from the Greek gnosis). Pharmacognosy may also be referred to as—“Study of crude drugs including chemical and physical properties obtained from Natural sources like plant, animal, microbial, mineral and marine source”. The topics of Pharmacognosy and Phytochemistry-I subject are entirely covered by the five chapters that make up the present text. Few themes were covered in tabular columns with diagrammatic examples, and the material was delivered in clear English that was easy to understand. At the end of the text, it was given with question bank. Students can test their knowledge gained by them from their readings.