This book provides theoretical and empirical knowledge to researchers using stereological techniques. Most of the commonly used techniques are given in this book. Each of the techniques gives an excellent opportunity to researchers who would like to work with tissues in three dimensions. Accurate and valuable quantitative data on the tissues and organs can be obtained by employing those techniques. This book contains 32 chapters in which the authors present rich data that is analyzed, discussed and interpreted, including morpho-quantitative, histomorphometry and qualitative values.