A trail guide should do two things:
1. Accurately describe, in detail, trails, access, condition, etc.
2. Inspire the reader to hike said trails
Kauai Trails: Walks, Strolls, and Treks on the Garden Island is mediocre when it comes to the first, and horrible when it comes to the second.
The author seems to do her best to convince a hiker planning a trip to Kauai that (s)he should visit California instead. She rails on about garbage, introduced species, erosion, hippies, etc throughout the entire books. Let's keep it to one chapter, Kathy!
Worst of all, she bashes the Kalalau Trail, discouraging any Kauai visitor from hiking it. Nevermind that it's ranked one of the best hikes on the planet. Nevermind that on every internet hiking forum, trip reports are invariably glowing. Nevermind that many people who live on Kauai or visit Kauai regularly think it's a DON'T MISS hike. Kathy says, "It's overrated. Don't bother."
I'm sad that we don't have a guide to hiking the Garden Isle that's more positive and informative, better organized, with better maps...one that actually makes you think you'll have an enjoyable time hiking in paradise.
Purchase this book only because it's the best one there is, not because it's good. I personally recommend The Ultimate Kauai Guidebook. While it doesn't go into as much detail on the trails, it's far more informative, positive, and better updated. Kathy's book lists many trails as CLOSED which aren't closer, or may be damaged but are still hikable.