The classic 2nd century study and analysis of Christian Gnosticism in all its extant variants, as collected both from Gnostic writings and discussions with Gnostic teachers (as well as ex-Gnostics).

Since Irenaeus was studying Gnosticism to help others change Gnostics' minds, he strove for as much accuracy as possible in his account. And in fact, you will find that his account of Gnosticism tallies closely with that of the recently rediscovered Gnostic writings.

This work is presented in five books, each with about two or three dozen chapters. I'm adding links to the whole items and links to the pages where the chapters may be downloaded individually, should you so desire:

Book I

Whole Item	Format	Size
VsHeresies_128kb.m3u	128kbps M3U	Stream
VsHeresies_64kb.m3u	64Kbps M3U	Stream
VsHeresies_64kb_mp3.zip	64Kbps MP3 ZIP	133.7M

Book II

Whole Item	Format	Size
VsHeresies2_128kb.m3u	128kbps M3U	Stream
VsHeresies2_64kb.m3u	64Kbps M3U	Stream
VsHeresies2_64kb_mp3.zip	64Kbps MP3 ZIP	171.1M

Book III

Whole Item	Format	Size
VsHeresies3_128kb.m3u	128kbps M3U	Stream
VsHeresies3_64kb.m3u	64Kbps M3U	Stream
VsHeresies3_64kb_mp3.zip	64Kbps MP3 ZIP	139.2M

Book IV

Whole Item	Format	Size
VsHeresies4_128kb.m3u	128kbps M3U	Stream
VsHeresies4_64kb.m3u	64Kbps M3U	Stream
VsHeresies4_64kb_mp3.zip	64Kbps MP3 ZIP	199.9M