SEARCH Articles Figures Tables Chemoinformatic Tools for Library Design and the Hit-to-Lead Process A Users Perspective Early Optimization or Hit-to-Lead Libraries Lead compounds library design Lead discovery designing combinatorial libraries Lead discovery library screening Lead generation targeted kinase libraries Leads from Libraries General Principles, Practical Considerations Libraries lead identification Library lead-finding Library lead-like Structure-based lead optimization library enumeration Visualization of Library Designs during Hit-to-lead Efforts