Advertising, Promotion & Digital Practice holds the Fen74 index entries for agencies and consultancies operating in marketing, promotional communications, and digital services. Entries span full-service advertising agencies, specialist digital consultancies, promotional-materials producers, and market-research firms. The curator has noted each entry by its primary service offering and the industry sectors it predominantly serves. Researchers examining the organisation of marketing and promotional services will find a cross-section of agency sizes, specialisations, and geographic reach. The collection is a useful reference for comparing the variety of approaches taken by businesses in this sector.