Flowers pressed and dried are used to decorate greeting cards and bookmarks. The drying technique is also a way to preserve a sentimental memento. Flowers with fine, thin, delicate stems and petals are not the best choice for pressing, nor are flowers with extra thick leaves or stems. Paper used for pressing flowers should be non-glossy, to easily absorb the moisture and allow air into the pages. Flowers that dry quickly will preserve more of their colors than flowers slowly dried. Yet, excessive heat conditions during the process will turn the flowers brown.
Select flowers that are in their prime or immature. If you intend to press a flower that was given to you as a gift, press before it begins to wilt.
Open a phonebook to the last few pages. Use the type of phonebook given to you by the phone company. This is an ideal use for a phonebook that is ready for the recycle bin.
Arrange the flowers in a single layer on the open page, placing them as close to the fold as possible. Position so that the flowers don't touch each other.
Close the book. If you have more flowers to press and dry, close just a dozen or so pages and repeat the previous step. You can continue to add layers of flowers, keeping a dozen or so pages between each layer.
Weight down the closed phone book with a heavy object and keep in a warm, dry location. It will take between two to four weeks to dry.