As stated in the title, I am interested in learning about Modal logic as a layman in the subject. I would appreciate any books, videos, articles, ect. Thanks!

  • 1
    "Best place" depends on your background, what exactly you want to learn and how much, which the post does not say at present. For starters, read SEP, Modal Logic and Possible Worlds, perhaps you can make the question more specific after that. There are many references for further reading there already, Kripke's book Naming and Necessity is considered a classic on the subject.
    – Conifold
    Sep 27, 2021 at 19:25
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    Hughes and Cresswell's A New Introduction to Modal Logic is a standard text. Brian Chellas' Modal Logic - An Introduction also has good reviews, but I've not read it myself.
    – Bumble
    Sep 27, 2021 at 19:26

4 Answers 4


The book I'd recommend for the novice (especially, on a philosophy Q&A platform) is Modal Logic for Philosophers by James W. Garson.

It achieves its promises (see the book's website) - fairly accessible to the student, focused on philosophical concerns rather than mathematical technicalities and diagrammatic material to facilitate visual understanding.

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I'm currently reading Boxes and Diamonds from the Open Logic Project and I like it so far. It also has the advantage of being hosted online and permissively licensed (CC BY 4.0).

It should be fairly accessible, but it gets into technical detail right away. It also assumes that you're comfortable with the object-language/metalanguage distinction and defining the truth conditions of a well-formed formula inductively. It is somewhat mathy.


The link below is to a set of lecture videos on modal logic titled "Introduction to Modal Logic", and they look pretty good.


Also, there are some nice short videos on YouTube by Carnadeas.org. Here's a link to the playlist.


As for a book, I personally liked "Modal Logic An Introduction" by Brian F. Chellas.


For a really first start , you may have a look at Logics by Nolt. Modal logic is only a chapter of this book and the basics are well explained.

Nolt also has written Schaum's Outline Of Logic ( and the book, has a new edition by Varzi); I think it contains an additonal chapter on modal logic.

Also, by Klement ( UMASS) : https://people.umass.edu/klement/511/ and Gary Hardegree ( who's always very clear and reader friendly) : https://courses.umass.edu/phil511-gmh/text.htm

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