The 1988 calendars are a bargain -- just what we've always needed, an extra day for our money.

It's a leap year, and some calendar publishers are going beyond adding Feb. 29, tacking on one or two extra months, just in case you're slow buying your 1989 day keeper.

This is the year of the dog, the cat, the loon, exotic birds, rare beasties, wild and tamed. All on calendars to remind us monthly or daily that the world is an Eden -- if the snakes don't blow it up.

{Except where mailing addresses and prices are given, all calendars are available in bookstores, though they sell out quickly and you may have to try several places.}

Every dog has his day on the "365 Dogs/Page a Day" calendar by Workman featuring "Bowsers and Hounds," "Poodles and Pugs" and "Champions and Memorable Mutts." The "365 Cats/Page a Day," also by Workman, sold out before Thanksgiving at the Card & Party Shop in Georgetown Park. "Cats sell better than dogs," said shop manager Elizabeth Freese, who has ordered more "365 Cats." In fine print on the bottom of the cover, it says, "plus a bonus page for leap year." Peter Straupp at Workman says, "When I saw the calendar, I thought: Oh, dear, it should've been 366, but since the calendars have always been called 365 Page a Day, it seemed better for continuity to keep the name."

The cat with the rat is back. "Krazy Kat," drawn by George Herriman, has escaped from the collectors' comic strips and onto its first calendar, bringing along Officer Pupp and Ignatz, the mouse who thinks he's a mountain. Not surprisingly, it takes 13 months to play cat and mouse (Harry N. Abrams Inc.).

Possibly the most unusual cat calendar is "Cat Lovers Against the Bomb," with the legend "Farms Not Arms" and a cautionary note for most days: "April 21, 1973: Cat named Quincy fell from 19th-story balcony in Toronto and survived." And "September 14, 1982: Wisconsin became first state to win referendum for nuclear freeze" (New Society Publishers, 4722 Baltimore Ave., Philadelphia, Pa., $6.95 plus $1.50 for mailing).

"The Animals Diary" by Animus from Jet Offset, 6-8 Boundary St., London E2 7UE, protests animal abuse; 2.95 pounds.

Art Calendars From its permanent collections and passing fancies, the National Gallery of Art shows weekly glimpses of "The World of Claude Monet" on its engagement calendar, and a selection of Monet and contemporaries on its "Impressionism Address Book" (both spiral bound). "The Berthe Morisot datebook" (with Mount Holyoke College Art Museum) is bound with a hard cover, for more important events; Renoir and Georgia O'Keeffe wall calendars make more memorable months.

"The Subject Is Women," the Corcoran Gallery of Art's engagement diary, pictures women as seen by illustrator Charles Dana Gibson, artist John Singer Sargent, photographer Bernis von zur Muehlen and others.

"American Art in American Museums," the Abrams appointment diary, selects art weekly from 52 museums, from a Jacob Lawrence in the Hampton (Va.) University Museum to a Larry Rivers in Williamstown, Mass.

"Modern Graphics: The Artist's Book," this year's wall calendar from the Library of Congress, has a brilliant page for every month from books with works by Wassily Kandinsky, Joan Miro', Juan Gris, Henri Matisse and others from the library's collection.

N.C. Wyeth, who stole the show from his descendants at the recent Corcoran Gallery of Art exhibit, stalks a Macmillan calendar with his illustrations from "The Last of the Mohicans."

"The Amnesty International USA Human Rights Calendar," published by Universe, offers thoughtful monthly images by world artists. Among them: a fat military man by Fernando Botero, two men on a horse by Alexander Calder, a peaceful seascape by Jan Dibbets and, appropriately, a hand reaching for a hand by Tadanori Yokoo.

Local 1734 Art Collective produces "Local Color Calendar" in an edition of 225, for the 11th year, at its gallery at 1734 Connecticut Ave. NW 20009. At $50 plus $5 tax and mailing, it's the most expensive, but for your money you get 13 original silk-screen prints by Sandra Fridley, Laura Seldman and Jenifer Weiss.

Franz Bader's Bookstore, in its new location at 1911 I St., still is Washington's best source for foreign art calendars: "Architectural Dreams" by Architektur Zeichnungen, Frankfurt, is full of castles in the air and mansions on the street; "Kindergeschichten/ Ein Ellermann Buch Kalendar" is a story calendar; and "Jugenstilfenster" offers transparent color pictures to hang in your window.

"Gauguin" is a year of tropical summers. In "Monet Garden," all's right with the world. In "Renoir" tout Paris dances. And "Art Deco" is a jazz tune of fierce creation between the world wars: a Cartier clock, an Eliel Saarinen studio room and a Normandie mural. All from Abrams.

"Celestial Images," the Smithsonian Engagement Calendar, shows the sun, the moon and the stars in a "Star of Bethlehem" quilt; the Smithsonian mace -- a lion holding a sun, resting on an inset of English smithsonite; a globe of the planet Mars; and other weekly marvels.

Local Landmarks "The Capital 1988" is seen in several kinds of weather through the lens of Lelia Hendren. She also visits landmarks as far away as Mount Vernon and as rarely pictured as the C&O Canal. "The Capital Calendar Engagement Diary" collects 54 Hendren photographs (Starwood).

"A Capital Collection," by the Junior League of Washington, presents bright scenes of Washington by Joseph Craig English.

"Washington, D.C." and "Virginia 1988," engagement calendars by Photri Laser Art Calendars of Alexandria, picture city and state birds, buildings and buddies; list the holidays and U.S. area codes; and throw in a Metro map.

Sails and Sports Cars The Lamborghini sporting car, a seductive image, poses for photographs by Brad Wagner for Landmark Calendars.

The annual "Yachting" calendar by Universe is filled with fair winds and full sails in races around the world.

The Great Outdoors Pitch and Tar Swamp, Great Falls, Dark Hollow Falls and Peaks of Otter are among the "Wild and Scenic Places of the Old Dominion" as photographed by David Muench, Ed Cooper, Jeff Gnass and Tom Till, and annotated for the 1988 Virginia calendar (Brown Trout).

"The Waterfowl Art of Maynard Reece," by a winner of five federal duck stamp contests hunts with a brush mallards, geese and teal ducklings in their native habitats (Abrams).

"The World Wildlife Fund Calendar" pictures the panda, the hoatzin, the red-eyed tree frog, the organpipe cactus and other unforgettable endangered species.

The National Geographic Calendar commemorates 100 years of exploration from the poles to the ocean depths (Abrams).

The Face Is Familiar "The American Film Institute" picks a producer a month -- George Lucas, Hal Wallis, David O. Selznick among them -- and supplies a picture a week from their works.

J.R.R. Tolkien is with us always on this, the 50th anniversary calendar of the Hobbit (Random House).

Blessed Days "Growing Up Catholic" for the year MCMLXXXVIII describes itselfas a "blessedly funny communion of holy and semi holy days for the Year of Our Lord." It lists the feast day of St. Anthony, patron of Lost Causes, and similar sanctified souls.

"Peter Spier's Advent Calendar" builds into a paper church with windows to open for 25 days (Doubleday).

"The Words of Martin Luther King Jr.," based on Coretta Scott King's book, offers thoughts and 13 historic photographs (Harper & Row). Sporting Types "NFL Football" scores with 13 great gridiron triumphs for your wall, including the past two Super Bowls, photographed by Walter Looss Jr. for Abrams. (Alas, there's no official Redskin Calendar this year.) "The 1988 USGA Championship Calendar" comes from Hallmark, with golf courses to putt-putt around in your imagination. "The 1988 Baseball Macmillan Calendar" includes a picture of Jackie Robinson stealing home. Something for every hurrah: "The 365 Sport Facts/Days" calendar by Workman.

"The Maccabiah Calendar" commemorates the 12th Jewish games in Israel. Stephen Gottlieb, a Washington photographer and a bronze and gold tennis medalist at the games, photographed a selection of 12 games from 30 sports played by Jewish athletes from 40 countries.

Soaring "Flying High," the first annual Naval Aviator's calendar, is out with some of its proceeds going to the U.S. Naval Memorial Foundation in Washington. Along with photographs by Brian R. Wolff and C.J. Heatley III is a dedication by former astronaut Alan Shepard.

More Stately Mansions "America's Oldest Buildings" gives a timeless quality to the year with pictures and descriptions for every week of the country's historic bricks, stones and wood.

Booked Up No week could be dull with "The Library of Congress 1988 Engagement Calendar." The book is like a card catalogue to the Library; among its treats are a photo of George Gershwin composing Concerto in F, the cover of a 17th-century Nepalese book on Asian deities and a Landsat map of Salt Lake City photographed from way way out (Galison Books).

"Shakespeare's World," compiled and edited by Judith Tabler Kelsey for the Folger Shakespeare Library (published by Pomegranate), gives facts little known: e.g., on "April 29, 1552, John Shakespeare {William's father} fined for garbage on street." Intimate Outdoors "Gardens of Washington Cathedral" is a walk along the Woodland Path of peony and veronica spikes, past the roses in the Bishop's Garden, the Seckel pear tree by Heinz Warneke's statue of the Prodigal Son and other delights from Mount Saint Alban's 57-acre sanctuary. Photographed by Alexandra K. Scott, published by All Hallows Guild and sold at the Museum Shop and Herb Cottage.

"Missouri Botanical Garden Calendar" has scenes of waterlilies, herb gardens, spring flowers and a snowbound statue among monthly glories photographed by Jack J. Hennings.

Six "1988 Gardener's Calendars" for every U.S. region give advice by Joanne Lawson and Louise Carter. "Growing Vegetables and Herbs Calendar" offers admonitions by John Brookes, photographs by Derek Fell. All by Starwood.

Back Home Charles Wysocki's 17th "The Americana Calendar" is full of New England scenes, many of them watery. "An Artist's Calendar 1988" offers 12 prints of gentle flowers and other dreamy domestic scenes by Lani Browning of West Bethesda. "Annabelle's Collection" of soft scenes, painted in pastels, comes with a quick-change frame.

Science "Dinosaurs 1988" contains 12 paintings of extinct (we hope) creatures by Gregory S. Paul (Starwood).

The "Smithsonian Family Learning Project Science Calendar" gives instructions for 12 experiments.