The book “Experimental Planning and Data Processing of an Active Experiment in Excel”, written by a team of authors, is a unique guide that will become an indispensable assistant for anyone interested in conducting experiments and analyzing data. This work integrates theoretical foundations and practical aspects, making it an ideal choice for both students and professionals working in science, engineering and business. One of the main topics of the book is the planning of experiments, which is a key stage in any scientific work. The authors consider in detail how to formulate hypotheses correctly, choose research methods and determine the necessary parameters to obtain reliable results. They emphasize the importance of a systematic approach and logic in conducting experiments, which avoids common errors and improves the quality of the data received. Readers will be able to learn about various planning methods, such as factor experiments and optimization techniques, which will help them to further organize their research more effectively. The book also focuses on data processing, which is an equally important aspect in conducting experiments. The authors invite readers to familiarize themselves with the basics of working in Excel, which is one of the most popular tools for analyzing data. They share practical advice on using formulas, plotting, and creating reports, making the analysis process more convenient and accessible. Readers will be able to master skills that will help them not only in scientific activities, but also in business, where data analysis plays a key role in decision-making. This book will be interesting to a wide range of readers .. Students studying natural sciences, engineering or statistics will find in it useful tips and practical examples that will help them in their studies and scientific activities. Professionals working in research and development will be able to improve their planning and analysis skills, which will increase their competitiveness in the labor market. In addition, the book will be useful to managers and analysts who are engaged in data processing and decision-making based on the results obtained. The topics raised in the book go beyond simple data planning and processing. The authors emphasize the importance of critical thinking and analysis, which is a necessary skill in today's world, where information is available in huge volumes. The book encourages readers not only to follow established methods, but also to develop their own understanding of processes, which contributes to a deeper understanding of the results of experiments. The style of the authors is characterized by accessibility and logical presentation, which makes the material understandable even for those who are just starting their way in science. The team of authors includes experts in various fields, which allows them to cover a wide range of topics and offer readers a variety of points of view. This makes the book not only an educational tool, but also an interesting reading for anyone who wants to expand their knowledge in the field of experiments and data analysis. If you are looking for a book that will help you master the planning of experiments and data processing using Excel, “Planning experiments and processing data of an active experiment in Excel” will be an excellent choice for you. It will not only provide you with the necessary knowledge and skills, but also inspire new research and discoveries. Do not miss the opportunity to immerse yourself in the world of science and data analysis with this fascinating and useful book!