The phrase "veritable encyclopedia" means someone or something that has a vast amount of knowledge on a wide range of topics, similar to a large and comprehensive reference book. Full definition
It is a veritable encyclopedia of brutal and effective drills to blast your training through the roof. (dieselcrew.com)
«PlayStation All - Stars Battle Royale delivers a veritable encyclopedia of PlayStation's rich gaming history,» said Guy Longworth, Senior Vice President of Marketing, SCEA. (totallygn.com)