This book claims to be an "Introduction" to electron microscopy, but it is not. Instead, it is a general description of VERY SPECIFIC methods, such as high pressure freezing, electron probe X-ray microanalysis, types of immunolabeling and specific techniques for each cellular organelle. IT DOES NOT CONTAIN ANY GENERAL METHOD OF PRINCIPLE, such as common fixatives, staining methods or embedding resins, nor does it say anything about the physics of the microscope.
If you are really looking for an INTRODUCTION (and a very general one, for that matter) to biological electron microscopy, I would recommend Bozzola's and Russell's Electron Microscopy. It contains general principles of both types of electron microscopes, basic techniques for standard methods, and chapters on more specific methods, like immunocytochemistry, autoradiography and freeze methods. For better and in-depth information about specimen preparation, Hayat's Principles and Techniques of Electron Microscopy is the best book available, although it does not contain any information on the physical principles of the electron micrsocope.
However, if your subject of interest are the physical principles of the electron microscope (and you are a biologist), although a bit old, Sjöstrand's book Electron Microscopy of Cells and Tissues is a very good reference, as well as Wischnitzer's Introduction to Electron Microscopy and Meek's Practical Electron Microscopy for Biologists.