This paper offers a description of the new forms of work, with special emphasis on the advantages and disadvantages that they involve for both employees and employers. From the perspective of Human Resources, these new models, and their coexistence with more traditional forms of employment, present challenges for the conventional management of functions such as planning, performance evaluation, or managing professional careers. Since the advantages that these new forms of work provide are evident, and their expansion is inevitable, all that remains is to minimize some implicit risks for both the employer and the employees.