The high school biology textbook describes the nucleus as the "master controller of the cell". This organelle of the cell is the basis of classifying organisms into prokaryotes and eukaryotes. It contains the genetic material and the nucleolus that is associated with ribosomes. The nucleus is emerging to be a "dynamic" organelle as opposed to the traditional concept of it being "stiff". This makes this book come at an apt time to present the emerging ideas of the nucleus in one concise volume. While the organelle is large and contains the genetic material, the saying "handle with care", seems apt for the nucleus. While it is indeed true, research has uncovered that this organelle can undergo deformation in migrating cells and can handle the stress.