Based on the IFLA (International Federation of Library Associations and Institutions) Library Buildings and Equipment Section's Library Building Guidelines published in 2007, this short publication summarises the key points to take into consideration when designing a new or refurbished library building. The aim of the brochure is not to replace any guidelines or standards but to provide librarians new to working on building projects with the essential facts they need to know. These basic issues are discussed under four headings: Preliminary Work and Research, Vision, Space Needs, and Communication. Four experts from the Standing Committee of the Library Buildings and Equipment Section have each authored a section on their area of specialist knowledge. The authors' goal is to provide readers with initial tips and inspiration on the long and fascinating journey from the first tentative ideas to the opening of the new building.