- The text is written in a simplified language, like a story; i.e. the end of each sentence is used as the beginning of the next one. This is because the stages of development are series of events. - Correlations of some letters and numbers are given the same colors, e.g. red or others to facilitate remembering. - Each chapter is provided with the needed figures to facilitate understanding the basic knowledge. - It provides the medical students and practitioners a basic clarification to some medical cases they face. Therefore, each subject is followed by its clinical correlates that represent the main aims for studying embryology. Also, up-to-date knowledge is provided to make the reader in close contact with the recent advances.