Legal research is "the process of identifying and retrieving information necessary to support legal decision-making. In its broadest sense, legal research includes each step of a course of action that begins with an analysis of the facts of a problem and concludes with the application and wikipedia.org

Subject indexing is the act of describing or classifying a document by index terms or other symbols in order to indicate what the document is about, to summarize its content or to increase its findability.

Event planning is the process of planning a festival, ceremony, competition, party, or convention. Event planning includes budgeting, establishing dates and alternate dates, selecting and reserving the event site, acquiring permits, and coordinating transportation and parking. wikipedia.org

Immigration law refers to national government policies control the phenomenon of immigration and deportation to their the legal status of people, in matters such as citizenship.

Legal translation is the translation of texts within the field of law. As law is a culture-dependent subject field, the work of legal translation and its products are not necessarily linguistically transparent. wikipedia.org

An invoice or bill is a commercial document issued by a seller to the buyer, indicating the products, quantities, and agreed prices for products or services the seller has provided the buyer. An invoice indicates the buyer must pay the seller, according to the payment terms. wikipedia.org

Office administration is a set of day-to-day activities related to financial planning, billing and recordkeeping, personnel, and physical distribution and logistics, within an organization. wikipedia.org