Hi there, If you enter their username in the search box and select Users as the type of search you are doing, you should be able to find their profile. The best way for them to share it with you, however, is to add you as a collaborator on the ideabook. They can do that by going to their ideabook, clicking Collaborate and then adding your email address or houzz username. Once it is shared with you that way, you will have access to it from your own profile.