Store
External checkout via Lemon Squeezy or Amazon KDP when a Buy URL is set in Sanity. Empty Buy URL = Notify me / coming soon. Prices shown are provisional labels for Walden to edit.
Students / learners
Coming soonCore ATC concepts with a serious practice bank
[PLACEHOLDER — Walden review] A PDF study guide paired with a 300-question practice bank for ATC trainees and serious students preparing for assessments.
Professionals
Coming soonApron and airside awareness you can keep close
[PLACEHOLDER — Walden review] A compact field guide for ground staff, turnaround teams, and anyone working airside who needs clear, practical safety framing.
~US$12–15
Professionals & learners
Coming soonAir law explained for learners and operators
[PLACEHOLDER — Walden review] A video course covering air law essentials for students and professionals who need clarity without drowning in statute text.