The phrase "comprehensive roundup" means a detailed summary or overview that includes all the important information or aspects of a particular topic. It includes a thorough examination or review of everything relevant. Full definition
Like always, what you'll find here is a utterly comprehensive roundup of all the chilly - weather, eco-friendly, sustainable, ethical,... (ecocult.com)
Red, White and Bleak; At the Whitney Biennial, Grim Reflections on the Dispirit of the Times The Washington Post; March 2, 2006; Blake Gopnik; 700 + words... comprehensive roundup of contemporary art, which opens today at the Whitney Museum of American Art. (highbeam.com)