I only have the previous edition and haven't seen the newer one. In the earlier edition, there are a few errors and the price guide is out of control (although that's pretty common with collector books!) In my opinion, the best lucite purse book is A Certain Style: The Art of the Plastic Handbag. While there are fewer photos, it's visually stunning and very well researched. I think it's been out of print for about 10 years, but you can occasionally find it used on ebay or amazon. But both books are worthwhile to have if you're a collector.
If you have any specific lucite purse questions, I can probably answer them as I've been collecting them for almost 20 years and have an embarrassing number of them!