For many knowledge-intensive or technology-based start-up companies, the professional management of intellectual property (IP) is critically important. In fact, IP may be the main asset by which the value of a young company is determined and on which decisions to invest in the company are based - and so IP needs to be considered very early in the planning process. The Commercialising Intellectual Property series of ebooks provides a detailed grounding for innovators and researchers. The fourth ebook in the series, Disclosing Intellectual Property, examines the absolute requirement for novelty in the patenting process against the researcher's natural desire to publish their work and considers the dangers and impact of premature or unintentional disclosure. The use of invention disclosure forms also is covered.