This book examined bibliometric investigations to identify the patterns of publication, authorship, citations and secondary journal coverage in the hope that such regularities can give an insight into the dynamics of the area under consideration. This consequently leads to a better organization of literature. Bibliometric investigation includes statistics, operations research, bibliometric distribution and laws, citation analysis, circulation theory, information theory and theoretical aspects of information retrieval, explicitly presented in this book. Scientometrics is the field of study which concerns itself with measuring and analyzing scientific literature. Scientometrics is a sub-field of bibliometrics. Major research issues include the measurement of the impact of research papers and academic journals, the understanding of scientific citations, and the use of such measurements in policy and management contexts. In practice there is a significant overlap between Scientometrics and other scientific fields such as information systems, information science, science of science policy, sociology of science.. The quality of research output is totally dependent on the information used and produced as a result of research. Scientific output in the form of publications can be measured by using bibliometric /scientometric techniques such as number of publications based on author, institution, country, year, type, subject and citation etc. This book presents bibliometrics, Scientometrics and Altmetrics studies collected chapters from the different authors and edited this book.