Books

Introducing Philosophy.

Stoicism: A Detailed Breakdown of Stoicism Philosophy and Wisdom from the Greats.

Travels with Epicurus.

Readings in Ancient Greek Philosophy.

Confucianism.

Ancient Greek Philosophers (Leather-bound Classics)

The First Philosophers: The Presocratics and Sophists
by Robin Waterfield

The Greek Philosophers: From Thales to Aristotle 
by William K. Guthrie

The Greeks Who Made Us Who We Are: Eighteen Ancient Philosophers, Scientists, Poets and Others
by M.A. Soupios

The Greek Philosophers: Selected Greek Texts from the Presocratics, Plato and Aristotle Paperback
by J. H. Lesher (

The Texts of Early Greek Philosophy: The Complete Fragments and Selected Testimonies of the Major Presocratics
by Daniel W. Graham

Early Greek Philosophy

Early Greek Philosophy, Volume VII: Later Ionian and Athenian Thinkers, 
by André Laks, Glenn W. Most

The Pre-Platonic Philosophers 
by Friedrich Nietzsche

Conversations of Socrates 
by Xenophon

The Cynic Philosophers: From Diogenes to Julian

Cynicism (The MIT Press Essential Knowledge series)
by Ansgar Allen

Diogenes the Cynic: Sayings and Anecdotes, With Other Popular Moralists 
by Diogenes the Cynic, Robin Hard

Cynics
by William Desmond, Steven Gerrard

Diogenes The Cynic: The War Against The World
by Luis E. Navia

The Pythagorean Sourcebook and Library
by Kenneth Sylvan Guthrie

Pythagoras: His Life and Teachings 
by Thomas Stanley

Pythagoras and the Pythagoreans
by Charles H. Kahn

Divine Harmony: The Life and Teachings of Pythagoras 
by John Strohmeier, Peter Westbrook

The Golden Verses of Pythagoras
by Fabre d'Olivet

Plato: Complete Works.

Indian Buddhist Philosophy.

The Egyptian Philosophers.

Epicurus And The Pleasant Life.

Philosophy: 100 Essential Thinkers.

Hypatia: Mathematician, Philosopher, Myth
by Charlotte Booth

Hypatia: The Life and Legend of an Ancient Philosopher (Women in Antiquity)
by Edward J. Watts

The Wisdom of Hypatia: Ancient Spiritual Practices for a More Meaningful Life
by Bruce J. MacLennan PhD

Hypatia of Alexandria (Revealing Antiquity)
by Maria Dzielska

Hypatia of Alexandria: Mathematician and Martyr 
by Michael A. B. Deakin

These are some recommendations that we consider are worth mentioning. You can make further research on this topic by clicking this link: Books about Philosophy .