Reddit reviews Parasyte

Hey, I originally read this series in English around 1997 when it appeared in Mixxzine. It has a complicated publishing history in the English language market.

First it was published by Tokyopop.(12 volumes)
It was later reprinted under Del Rey's lineup.
[Finally its was published by Kodansha US in 2011.] (http://www.randomhouse.com/book/85741/parasyte-2-by-hitoshi-iwaaki)(8 volumes)
Kodansha US reprinted it this year.

Here's the original Tokyopop/Mixxzine release for £2.00 bear in mind the chapters may not overlap exactly so you might also need vol 3 from this print.

Of course if you want to wait it out the Vol 2 prices should hopefully drop as the reprint copies make their way onto the market.