Profession: No organization can work without its staff strength. The same is true for the library also. So, to meet the demand of the user of a library the library authority recruits sufficient number of persons with different academic degrees and / or experience in the library. They are termed as library staff or Library and Information Science (LIS) professionals. There are various synonymous terms that are used for LIS professionals such as librarian, curator, archivist, metadata architects, cataloguer, indexers, information broker, information architectures, metadata managers, etc.

The information professionals should have a very good communication skill, capacity for judgment, a service-oriented mind that is ever willing to work for the benefit of others, a user-friendly attitude, curiosity for the latest information in all relevant fields, and lastly adaptability for any situation. Along with the user’s needs that change from time to time, the method and techniques employed for the dissemination of information also change and the librarian in particular should be able to adapt to these changes.

A profession is an occupation that requires extensive training, the study and mastery of specialized knowledge, and usually involves a professional association, ethical code and process of certification or licensing. Historically, the number of professions was limited. The medical doctors and lawyers have traditionally held the monopoly on professional status and on professional education along with the military officers recognized as their social equals. With the rise of technology and occupational specialization in the 19th century, other bodies also began to claim "professional" status: engineers, librarianship, educationalists and even nurses, and today almost any occupational group can at least unofficially aspire to belong to a professional rank. There are many other groups that seek to claim the status as a profession and many others who would dispute that status.

The existence of a traceable historical record of notable members of the profession can serve as an indicator of a profession. Often, these historic professionals have become well known to laypersons outside the field, for example, Clarence Darrow (law) or Edward Jenner (medicine). In modern times there is no standard definition of a modern professional, however.

According to Rescoe Pound, in common parlance, “the term refers to a group of men pursuing a learned art as a common calling in the spirit of public service - no less a public service because it may incidentally be a means of livelihood”. A member of a profession is termed a professional.

Websters Third New International Dictionary of the English language defines a profession as “a calling requiring specialized knowledge and often long and intensive preparation including instruction in skills and methods as well as in the scientific, historical or scholarly principles underlying such skills and methods, maintaining by force of organization or concerted opinion, high standard of achievement and conduct and committing its member to continued study and to a kind of work which has for its prime purpose the rendering of public service”.