Book excerpt: The very first techniques book in orientation and mobility has been completely revised and updated for today's fast-changing world, while remaining true to Hill and Ponder's simple organizational principles that generations have known and loved. A new, easy-to-read color format, accompanying photographs, updated information on street crossings at complex intersections, and a new chapter on O&M for people with low vision make this revised edition a must-have in your O&M library.