Here are three of Cryptopop's ever-popular, challenging Zyptograms. The first one is relatively easy, as far as Zyps go. The second and third are medium.
See if you can get all three. And then watch for two more Zyps -- even more difficult than these -- to be posted within a few days.
1. UJAGUPK UJAGU PK GAUJU.
2. NOTBOD NQZCMBO NOZBOC NTQD NDCMBOC.
3. IOQFI IOQFZAGR OCRA VIOCFZ, IQFFAO IQFI VGF.