In the LIS curriculum library visits are already included. A physical visit to leading four/five libraries once in two years will not give more real exposure. LIS curriculum should be such when students finish their study least each student have should visited all types of libraries with primary school, secondary school, higher secondary school, Pre College, Arts College, Commerce College, Science College, Management Library, Pharmacy College, Medical College, Nursing College, Ayurvedic College, Homeopathic College, Hospital Library, Engineering (civil, mechanical, electrical, chemical, IT, electronic) Library, Architecture College, Public Library includes Village, District, State, National Library, University Library, various types of Institutional Library, Specialized Library with industries, Archival Library etc.
Initially in the first year students should visit as users in the second as professional. They should be good observer and LIS department can help them in identifying the checklist to be observed and studied when they visit various libraries. Some of the checklist could be before going to a library they should collect maximum information from the website about academic activity and library, ambience of a library, target audience, resources print and electronic. Print covers books, reference books, journals, magazines, newspapers, etc. Electronic resources cover e-journals, e-books, e-magazines, e-reports, DVD, etc. Information technology used by various libraries, and others such A to Z, federated search, new open source software. The most important part is resource knowledge, management and communication skills.
I am sure visits to all these types of libraries will make lots of difference in students' vision when they join the LIS sector. They can easily relate any library with their resources and target audience easily and knows how to deliver more than expectations and that to before time. I am relating this with brand building process for LIS sector.