"This book is a concentrated source of knowledge, wisdom, and the author's deep professional experience. It's a true bible for nail technicians at every stage-from students just beginning their journey to expert-level educators. Clear, insightful, and thorough, it answers all your essential questions: What is it? How does it work? And why does it matter? Professional literature rarely makes its way onto "book of the year" lists-but this one is an exception. Even in the editing phase, it was already being recognized as a global bestseller-not only for 2025, but quite possibly for the entire decade." Vitaly Solomonov Medical Researcher and Cosmetic Chemist