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Bierfilzl Merino Wool Round Coaster Multi 4 PackMerino wool is among the most hydrophilic natural fibers, capable of absorbing up to 30% of its weight without feeling damp. Our traditional BierfilzlGerman for "Beer Felt"are crafted from the highest quality German Merino wool, offering durability with an elegant, heritage inspired touch. Their clean, minimal design brings a refined modern accent to any home dcor. Each set includes four Merino wool coasters for exceptional surface protection. Every
Merino wool is among the most hydrophilic natural fibers, capable of absorbing up to 30% of its weight without feeling damp. Our traditional Bierfilzl—German for "Beer Felt"—are crafted from the highest quality German Merino wool, offering durability with an elegant, heritage-inspired touch. Their clean, minimal design brings a refined modern accent to any home décor. Each set includes four Merino wool coasters for exceptional surface protection. Every coaster bears our discreet logo on the underside as a mark of quality, crafted to be as beautiful to display as they are functional to use. Benefits of Merino Wool Sustainable, biodegradable, and renewable Odor, stain, heat, and dirt-resistant Oeko-Tex® CertifiedShipping Notes
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4.9 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
must have book for new to kali folk.
Format: Paperback
Knowledge is a mathematical expression. amazing book. my expression is happy!
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Reviewed in the United States on February 4, 2026
★★★★★ 5
Great Linux Intro!
Format: Paperback
This is one of the best beginner Linux books out there, even if you’re not into hacking. OTW covers the essentials in a clear, practical way without boring fluff. Perfect for anyone looking to get hands-on with Linux, whether you’re breaking into cybersecurity or just want to stop being scared of the terminal.
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Reviewed in the United States on July 14, 2025
★★★★★ 5
Looks like it'll be a great beginner book and reference book too.
Format: Paperback
Came in great shape, no issues.
Just started reading it, but it's been a good read so far.
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Reviewed in the United States on January 10, 2026
★★★★★ 5
This IS where you start to understand it all!
Format: Paperback
While I haven't received my Second Edition book yet I do have the First Edition and I can say it's very thorough and well explained to even the beginner level. If you're trying to learn both Linux and Cybersecurity this IS the place you want to start. It will save you a ton of headaches and you're getting VERY VALUABLE skills you can use in any scenario. I would call it an advanced starting point. Linux itself can be somewhat difficult and daunting to learn and understand if you're coming from a strict use (Windows in my case) OS 25+ years. This book bridges that gap effectively and you can absorb the knowledge with a little work. Also watching OTW's video on YouTube with David Bombal is an excellent follow along source. In my opinion, OTW does the best job of explaining exactly what you need to know. And follow it up with a video or two of how to understand the Linux file system and you'll soon be set to go. David Bombal's vids on setting up VM on your computer are also very helpful!
If your intention is to get into Cybersecurity from zero knowledge this IS the best point to gain valuable knowledge whether it's to crack into IT, Cybersecurity or just for your own knowledge, this book is worth 10x it's price!
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Reviewed in the United States on December 17, 2025
★★★★★ 5
Linux for Hackers
Format: Paperback
If you are serious about learning Linux as well as a career in White Hat hacking this is an excellent book.
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Reviewed in the United States on January 7, 2026