When and How to Use Old Style Numerals

OpenType Pro fonts (and some older font collections) often include two kinds of numerals: “Lining” and “Old Style”. At CreativePro.com, James Felici gives a clear, useful explanation on when to use Old Style figures, and what the difference is between them and Lining figures. Read it at http://www.tinyurl.com/yjm4h44.