The phrase "indispensable guide" means a person or thing that is crucial or necessary in providing help, advice, or information for a particular task, journey, or experience. Full definition
«The Storyteller's Secret is an infectious and indispensable guide for readers with an idea to sell.» (brightsightgroup.com)
Download the START app, available on iTunes and Google Play.Your indispensable guide to the START art fair including all essential information - a floor plan, gallery and Prudential Eye Zone artist profiles, and the latest news from the fair. (startartfair.com)
Here are most of the words that will appear on the beautiful dust jacket: An Indispensable Guide to.... (firstthings.com)