The Vision Council has announced the release of the 2015/2016 edition of the Progressive Identifier Book, the industry guide to the identifying marks engraved on progressive addition lenses (PALs). The publication is provided by the The Vision Council's Optical Lab member companies. This latest edition features graphics for 160 lens designs distributed in the U.S. and Canada and new for this year, each entry contains information about the location of the PAL design. Book inquiries can be submitted to The Vision Council through their optical lab. The directory of member labs is available online at