Two new guides from British etiquette authority Debrett's offer modern men some time-honoured tips on shoe care and shaving alongside 21st century advice on how to handle your mobile phone, email punctuation and an answer for any modern digital Hamlet: "To tweet or not to tweet?"

The sartorial bible "Men's Style" includes advice on formal wear and tailoring traditions as well as how to mix and match casual clothing, picking the right aftershave and "essential" advice on maintaining luxuriant beards and moustaches.

"Netiquette" helps navigate the dos and don'ts of the digital age with useful suggestions on mobile phone use, golden rules for emails and texting faux pas. It demystifies technical terminology, offers ways to protect your privacy and advice on getting your Twitter persona just right.

"Men's Style is packed with subtle advice and practical hints to help the modern man to appear effortlessly stylish, while at a time when web-based communication is threatening to take over all our lives, Netiquette is an indispensable guide on how to deal with every digital dilemma," Debrett's Managing Editor Jo Bryant said in a statement.

Both guides are part of a series of titles, which include "Debrett's People of Today", listing people of distinction and achievement, "A Guide to Civilised Separation" and "Debrett's A-Z of Modern Manners".

Besides its modern-day etiquette and grooming guides, Debrett's has been the indispensible record of the British aristocracy for centuries, tracking the fortunes of titled families since the late 18th century. (Reporting by Paul Casciato)

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