I've recently discovered Stoic Philosophy while browsing a couple of blogs such as Mr. Money Mustache and Art of Manliness. I am aware of "Meditations" by Marcus Aurelius and "A Guide to the Good Life: The Ancient Art of Stoic Joy" by William B. Irvine but does anyone have any further recommendations?

You should be extending your stay among writers whose genius is unquestionable, deriving constant nourishment from them if you wish to gain anything from your reading that will find a lasting place in your mind. Seneca, Letters from a Stoic

I posed this question to Ryan Holiday(who has written a few very high quality books on the topic of Stoicism) and he was of the thought that we should pursue modern takes. What's your perspective and if either the modern take or the classic, what uses do you take in your everyday life? :)