This book aims to guide both the experimentalist and theoretician through their compulsory laboratory course forming part of an undergraduate physics degree. Some stu­dents will have left school believing that physics experiments never work . Designing and performing good physics experi­ments is a craft, it is a skill developed gradually over time. The thinking behind this book is to persuade students of the value and beauty within a carefully planned and executed experiment and help them to develop the skills to carry out experiments themselves. All the chapters have been described with easy to understand language and student friendly manner that students have grasp the subject easily. Those students who are completing undergraduate research projects and beginning a doctorate will also find helpful and relevant sections. Graduate students supervising labora­tory sessions will find this a useful resource: especially the dedicated section on Demonstrating Undergraduate Physics Laboratory