An article titled "extensive and thorough services" would discuss the many services that a business offers to its customers. It would explain how these services are performed in a detailed and complete manner. The article would also highlight the benefits of having such services available.
There is no one-size-fits-all answer to this question, as the level of detail and level of service required will vary depending on the specific needs of the customer. However, in general, extensive and thorough services refers to a high level of customer service that is designed to address all of the customer's needs and requirements. This could include everything from providing detailed information about products and services to offering personalized assistance and support.
The staff at the library are very helpful and seem to be always available to help with anything you need. The services provided by the library are very extensive and thorough. I would definitely recommend this library to anyone.