First time here? Start with these 7 steps
A quick guide from payment to receiving your books
- 1📖
Check product details
On the product page, review what's included, who it's for, the price, and the contents. Reading existing buyer reviews in the reviews tab is also helpful.
💡 TIP Be sure to check the refund policy at the bottom of the detail page. - 2🔐
Sign up or log in
You can register by email or use one-click sign-up with Kakao. When signing up by email, a confirmation email will be sent to your address.
💡 TIP Kakao sign-up is the fastest — your name, email, and phone are filled in automatically. - 3💳
Complete payment
Choose your preferred method: credit/debit card, bank transfer, Kakao Pay, or Toss Pay. The payment window is processed securely by Toss Payments, and your card details are never stored on our servers.
💡 TIP If you need a cash receipt (for tax purposes), enter your phone number at checkout. - 4📥
Download main and supplements
Once payment is confirmed, you'll be taken straight to the download page. You'll get the main books (3-book bundle) and supplements (workbook + materials) as separate ZIP files. Each PDF contains a faint watermark with your name and email.
💡 TIP On mobile, download over Wi-Fi for a faster experience. - 5📚
Open your PDFs
You can read them directly in any PDF viewer. We recommend the Books app on iOS, Google Drive or Adobe Acrobat Reader on Android, and Acrobat Reader DC on desktop.
💡 TIP Log in with the same account on any device to re-download anytime. - 6⭐
Re-download anytime from My Page
If you switch devices or lose the files, you can re-download them from the Purchases tab of My Page with no limit. You can also request receipts and tax invoices from there.
💡 TIP Following the guide within 10 days of purchase brings the best results. - 7💬
Ask questions in Q&A
Post any questions you have on the Q&A board. We respond as soon as we see them, and you'll get a badge notification at the top of My Page when a reply is posted.
💡 TIP Set your question as private if you'd like only the administrator to see it.