A couple of the books are available on amazon, though others are out of print, but you may be able to find them at an online used book service like abebooks or else libraries often have them. (I've just talked myself into reading it again!)
And my library also has the BBC series on film, about 12 installments (with the wonderful Prunella Scales as Mapp). Great fun if you can find it!
from the amazon site:
Book Description
This hilarious study of 1930s manners and pecking order begins when Lucia Lucas rents a summer place - the home of Miss Elizabeth Mapp - in the English village of Tilling. Between Miss Mapp's penchant for spying on neighbors and Lucia's fussy sidekick, Georgie, the stage is set for a battle of wits.
From the Publisher
Mrs. Emmeline Lucas (Lucia to her friends) is the recently-widowed newcomer to the village of Tilling, eager to wrest the reins of social supremacy from the incumbent Miss Elizabeth Mapp and to install herself as its benevolent dictator. In their polite acts of sabotage, as they ruthlessly jockey for the position of cultural arbiter, Mapp and Lucia tear up the conventions of drawing-room diplomacy and enter a protracted conflict using fêtes, garden parties, musical soirées, and bridge evenings as their deadly weapons. Things finally come to a head with Miss Mapp's audacious attempt to steal her rival's celebrated recipe for Lobster à la Riseholme. With a charming satirical bent, E.F. Benson turns the pretensions and snobberies of English village life into a deliciously wicked comedy. E.F. Benson (1867-1940) was the son of the Archbishop of Canterbury and a member of a distinguished and eccentric family. He wrote more than 100 books but is best remembered for his Lucia novels, written between 1920 and 1939.
