Review: Acoustical phonetics is a fascinating field that studies the physical properties and production of speech sounds. It provides insights into how our vocal organs produce these sounds, as well as the acoustic characteristics that distinguish different languages and dialects. In this review, we will examine four books on acoustical phonetics: Elements of Acoustic Phonetics by Ladefoged, Peter (1995), Elements of Acoustic Phonetics 2nd edition by Ladefoged, Peter (1997), Preliminaries to Linguistic Phonetics / Elements to Acoustic Phoentics (2 Volumes) and ELEMENTS OF HUMAN VOICE. Elements of Acoustic Phonetics by Ladefoged, Peter (1995) is a comprehensive textbook that covers the basics of acoustical phonetics. It provides an overview of the physical properties of speech sounds, including their production, transmission, and perception. The book also includes detailed descriptions of the different types of sound sources used in speech production, such as glottal stops, fricatives, and approximants. Additionally, it covers the acoustic characteristics of vowels and consonants, as well as the relationship between phonetics and linguistics. Overall, this book is a great introduction to the field of acoustical phonetics for students who are just starting out in their studies. Elements of Acoustic Phonetics 2nd edition by Ladefoged, Peter (1997) builds upon the foundations laid in the first edition and provides more advanced topics in acoustical phonetics. It covers a wide range of topics, including the physics of sound production, the acoustic properties of speech sounds, and the relationship between phonetics and other fields such as psychology and neuroscience. The book also includes new research findings and examples that were not included in the first edition. This makes it an excellent resource for students who have already completed a basic course in acoustical phonetics and are looking to deepen their understanding of the field. Preliminaries to Linguistic Phonetics / Elements to Acoustic Phoentics (2 Volumes) is a comprehensive textbook that covers both linguistic and acoustical aspects of speech sounds. It provides an in-depth analysis of the physical properties of speech sounds, including their production, transmission, and perception. The book also includes detailed descriptions of the different types of sound sources used in speech production, such as glottal stops, fricatives, and approximants. Additionally, it covers the acoustic characteristics of vowels and consonants, as well as the relationship between phonetics and linguistics. This textbook is an excellent resource for students who are interested in both the linguistic and acoustical aspects of speech sounds. ELEMENTS OF HUMAN VOICE is a specialized textbook that focuses specifically on the human voice. It covers topics such as vocal physiology, phonetics, and phonology, with an emphasis on how these factors contribute to the unique characteristics of the human voice. The book also includes detailed descriptions of different types of singing voices, including tenor, baritone, bass, and mezzo-soprano. Additionally, it covers the acoustic properties of speech sounds in the context of singing, as well as the relationship between phonetics and music theory. This textbook is an excellent resource for students who are interested in studying the human voice in depth. In conclusion, these four books on acoustical phonetics provide a comprehensive overview of the field. Elements of Acoustic Phonetics by Ladefoged, Peter (1995) and ELEMENTS OF HUMAN VOICE are great introductions to the field for students who are just starting out in their studies. Elements of Acoustic Phonetics 2nd edition by Ladefoged, Peter (1997) and Preliminaries to Linguistic Phonetics / Elements to Acoustic Phoentics provide more advanced topics and research findings for students who have already completed a basic course in acoustical phonetics.