The honest problem with beginner lists is that "important" and "approachable" are almost unrelated properties. The books that changed philosophy were mostly written for people who had already read the previous three hundred years of it. Starting there is like learning to swim in open water.
Tier oneGenuinely readable from cold.
Marcus Aurelius — MeditationsA Roman emperor's private notebook, never meant for publication. Short entries, no argument to follow, no prerequisites. The most common successful entry point into philosophy.
Epictetus — EnchiridionA short handbook of Stoic practice. Blunt, practical, and finishable in an afternoon.
Plato — Apology, Euthyphro, CritoShort dialogues, dramatic rather than technical. The Apology is Socrates' defence at his trial and works as literature even if you skip the philosophy.
Seneca — LettersWritten to a friend, so they assume nothing. Dip in anywhere; they don't need to be read in order.
Tier twoOnce you have momentum.
Aristotle — Nicomachean EthicsDense but concrete, and it repays effort quickly. The founding text of virtue ethics.
Descartes — Meditations on First PhilosophyAround sixty pages, first-person, and it launches modern philosophy. You can follow the argument without background.
Mill — On LibertyClear Victorian prose arguing for the harm principle. Still the reference point for free-speech debates.
Camus — The Myth of SisyphusEssayistic rather than systematic. Difficult in places, but the central image carries you.
Tier threeWorth it, but not first.
Kant's Critique of Pure Reason, Hegel's Phenomenology, Heidegger's Being and Time, and Wittgenstein's Tractatus are all major works and all bad starting points — not because they are too clever for a beginner but because they are written in technical vocabularies you have to acquire elsewhere first. Reading them cold produces the impression that philosophy is deliberately obscure, which is the single most common reason people give up.
Important and approachable are almost unrelated properties.Why most reading lists fail
Practical notesThings nobody tells you.
Translations vary enormously. For Greek, Latin, German and French texts, the translator shapes readability more than any other factor. Sample the first page of two or three before buying — the difference between a fluent modern translation and a stiff Victorian one is the difference between finishing and quitting.
Most of this is free and legally so. Nearly everything above is in the public domain, and reputable archives host the older standard translations at no cost. Newer translations are usually better, but a free text you actually read beats a good one you plan to buy.
Reference works are underrated. The Stanford Encyclopedia of Philosophy is written by specialists, free, and far more reliable than most introductory books. Reading a primary text alongside its encyclopedia entry is one of the most effective things a beginner can do.
Read slowly and reread. Philosophy is not information to absorb but arguments to follow, and a paragraph you have understood is worth a chapter you have skimmed. Twenty pages a week, understood, will take you further in a year than most people get in a decade of intending to start.
People also askQuick answers
What is the best philosophy book to start with?
Marcus Aurelius's Meditations is the most common successful entry point — short entries, no argument to follow, and no prerequisites. Epictetus's Enchiridion and Plato's Apology are equally good starting places.
Should beginners read Kant or Hegel first?
No. Both are major works and poor starting points, not because they're too difficult in principle but because they use technical vocabularies you need to acquire elsewhere first. Starting there is the most common reason people abandon philosophy.
Are free philosophy books any good?
Yes. Nearly all pre-1900 philosophy is in the public domain, and reputable archives host standard older translations legally at no cost. Newer translations are often more readable, but a free text you actually finish beats one you intend to buy.
Does the translation matter?
Considerably, especially for Greek, Latin, German and French texts. The same work can read as lucid or impenetrable depending on the translator. Sample the first page of two or three before committing.
How should you read philosophy?
Slowly, and more than once. It isn't information to absorb but arguments to follow, so a paragraph understood beats a chapter skimmed. Reading a primary text alongside its Stanford Encyclopedia entry is unusually effective.