SHAWN WALKER · CERTIFICATION GUIDES
Shawn Walker gives you the certifications, the knowledge and the confidence to take the next step in IT — without wasting a single page of your time.
Three certifications. One uncompromising standard: clarity, depth and exam-day readiness.
THE LIBRARY
Three all-in-one study guides by Shawn Walker, each shipping with a full digital companion: practice questions, flashcards, lab simulators and full-length mock exams.
CORE 1 & CORE 2 · ALL-IN-ONE
The all-in-one manual to pass Core 1 (220-1201) and Core 2 (220-1202) with confidence. Hardware, networking, mobile devices, virtualization, operating systems, security and troubleshooting — paired with hands-on labs, practical exercises and the Exam AI Trainer Pro.
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N10-009 · ALL-IN-ONE
Master networking concepts, implementation and operations — from the OSI and TCP/IP models to routing, switching, VLANs, wireless, cloud networking and Infrastructure as Code. Includes lab simulators, four full-length practice tests and the AI Trainer Pro.
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SY0-701 · ALL-IN-ONE
The complete preparation manual for the Security+ exam: threats, vulnerabilities, security architecture, operations and program management. Built for clarity and depth, with lab simulators, four full-length practice tests and the AI Trainer Pro.
Discover more →This project began with a frustration shared by every self-taught learner: certification books are either too thin to actually teach the material, or too thick to actually finish. You either buy five resources and stitch them together yourself, or you spend six months on a textbook and still don't feel ready on exam day.
So I built what I wished I had — and I built it around three principles I refuse to compromise on.
Theory, labs, practice questions and exam strategy in a single volume. No upsells. No "companion materials sold separately." If it belongs in your prep, it belongs in the book.
I won't waste your time on trivia you'll never see again. Every chapter ties back to something a real practitioner actually does on Monday morning — because the certificate is the start of a career, not the end of a checklist.
Every Shawn Walker book unlocks a free companion platform built around the three things memorization can't replace: context, repetition and feedback. Real-world scenarios. Full-length simulators. Flashcards. An AI tutor that knows your exam objectives line by line — and tells you not just what you got wrong, but why, and what to study next.
If I didn't help you get there, I haven't done my job.
EARLY ACCESS
Drop your email and you'll be the first to hear when I publish a new study guide, release a new digital tool, or open early access to something I've been working on.
CONTACT
Whether you spotted a typo, have a suggestion for the next book, want to collaborate, or simply have a question about a certification — I read every email.
WRITE TO ME shawnwalkercert@gmail.com