Thomas Joos has 40 years of experience in the IT industry and has established himself as a freelance author and expert in the areas of networks, security, business software, artificial intelligence and operating systems. His extensive work includes more than 100 books, including publications for Microsoft Press. In addition to his writing work, Joos offers consulting services for companies, especially in the areas of security and network infrastructure. As a trainer for LinkedIn Learning, he regularly creates online courses aimed at professionals and administrators.