Which language are the books in?
Choose the reading language above the bookshelf or inside a book: English, Čeština, Slovenčina, Deutsch or Русский. Each available edition has its own cover, free preview and download. The EN / CZ switch changes the shop interface; it does not change books already in your basket.
Can I look inside first?
Yes. Each book has its own free PDF sample. No email address, account or purchase is required. The sample is a small selection, not the full paid book.
What is included in a PDF edition?
The full release includes A4 and US Letter editions with the same content. A 64-page title is 64 unique pages, not 128. Download the size matching your paper, then print only the pages you want.
How should I print?
Start with one page at “Actual size” or 100%, using the matching paper format. Check the preview and margins first. Single-sided printing is usually easier for coloring; markers may bleed through ordinary office paper. Use pencils or crayons, or test your preferred medium on a spare sheet.