"This book was written due to the demand for a clearer understanding into how exaxtly a laptop works. Laptop, notebook, netbook and oter portable computer repairing is not a skill yet taught in classes, colleges or in the industry. Until now, laptop repairing is/was learned by watching videos on the web, reading forum discussion boards or by simply not repairing and just replacing the part due to lack of knowledge on the subject in question. "--Back cover.