These sorts of directories remain very useful for local domestic, consumer and household products and services suppliers. A business telephone line normally gives free Yellow Pages and Thomson's entries under a single classification in your local books. Display adverts or more entries are charged at rates that vary according to each book (there are around 100 Yellow Pages directories books covering the UK). Books are published annually, at different dates throughout the country. These directories can often be very effective for generating enquiries for consumer businesses, but are not appropriate for all types of business-to-business sectors. Ask yourself - where would my potential customers look for suppliers of my products and services?
Consider and seek out local smaller directories and trades booklets also. The increasing ease of publishing means that production of good quality small-scale local directories is now very easy for publishers and most towns now have at least one local directory or booklet listing local suppliers which is distributed to all households in the area.