We are now closed for the Christmas and New Year period, returning on Monday 5th January 2026. Orders placed during this time will be processed upon our return on 5th January.

The Third Supplement to the Ninth Edition adds terms helpfully defined for the first time or in a new way, such as "deliberate absence", "exogenous infection"; "Kirpan"; "lobster pot principle"; "lorry surfing"; "pocketknife"; "pornographic material"; "pow" and others. At the same time it updates a number of old favourites including "agreed"; "benefits" consequential"; consideration"; "consumer"; "disproportionate" and many others.