In 2007 AASL expanded and restructured the standards that school librarians should strive for in their teaching. These were published as "Standards for the 21st Century Learner" and address several literacies: information, technology, visual, textual, and digital. These aspects of literacy were organized within four key goals: that "learners use of skills, resources, & tools" to "inquire, think critically, and gain knowledge"; to "draw conclusions, make informed decisions, apply knowledge to new situations, and create new knowledge"; to "share knowledge and participate ethically and productively as members of our democratic society"; and to "pursue personal and aesthetic growth".