Hiromi Hayashi’s Origami Flowers is a compact, well-regarded collection of modular and single-sheet flower designs that balances accessible folding techniques with elegant final forms. The book (often circulated as a small paperback and sometimes found online in PDF form) emphasizes clean, botanical shapes—roses, lilies, lotuses, and stylized blossoms—designed for both beginners and intermediate folders.
If you're interested in learning more about origami flowers or Hiromi Hayashi's designs, here are some general tips: origami flowers hiromi hayashi pdf
Origami Flowers: Popular Blossoms and Creative Bouquets (2003) origami flowers hiromi hayashi pdf