AUTHOR=Parker  Quentin A. TITLE=Planetary nebulae and how to find them: A concise review JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=Volume 9 - 2022 YEAR=2022 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2022.895287 DOI=10.3389/fspas.2022.895287 ISSN=2296-987X ABSTRACT=This review is intended to provide useful background and information on how we find, detect and compile Planetary Nebulae PNe candidates and verify them. It also presents a summary of the current known Galactic PN population and their curation in the Hong Kong/ AAO/ Strasbourg/ H-alpha planetary nebulae catalogue, HASH. It is a simple introduction for anyone interested in working with Planetary Nebulae, including postgraduate students entering the field and for more general interest too.