There’s pretty widespread agreement here about Emily Austin’s book as a fine introductory text for modern readers, and respect for Catherine Wilson’s efforts despite cogent criticism. And Hiram Crespo’s book, though perhaps more so-called “neo-Epicurean” (or “Epicurean/Humanist”?) I think is also a good modern introduction.
But where to go next among modern writers – a next step into a more intermediate-level book? DeWitt, I guess. But I want to suggest two for newer Epicureans who want to take that next step (in no real order):
Dimitriadis, Haris. EPICURUS and THE PLEASANT LIFE: A Philosophy of Nature Kindle Edition – November 30, 2022 - Revised and Expanded 2nd Edition.
And Cassius Amicus, ELEMENTAL EPICUREANISM: The Core Texts of Epicureanism, 2013.
Both are available on Kindle, and Cassius’ book, especially, can be a continuing resource.