The Library work published here is the compilation of information on Lasers and its application in Pediatric Dentistry. Sincere effort has been undertaken to collect information from various books from renowned authors and indexed journals to give a comprehensive information on the subject. Latest informations on the subject is also included. Language used is simple and easy to understand. Lastly, i would like to convey that this work is not a original research but a compilation of information on the subject.