The 3rd edition is the same size and format as the first two editions. Notes have been updated and include details such as new huts, changed food drop facilities and the new section of track through Ellery Creek North. A number of off-track walks in the area (Chewings Range & Mt Giles and Mt Zeil) have not been included in the guide as it would make the book heavier and is not of relevance to most Larapinta Trail walkers.

The Larapinta Trail guide has 160 pages, 121 colour photographs, and 20 topographic maps (one for each day's walk). This is an all-colour production with full track notes for both directions along the trail. The colour topographic maps and notes have been colour coded for each direction to reduce confusion about which notes are currently being followed. Gradient profiles are provided at the same scale as those used in all the Chapman books. Each chapter describes a section of the trail plus the side trip to Glen Helen is included. The third edition has an expanded background section which includes the history of the area and notes on geology, climate, vegetation and wildlife. A comprehensive section on Safety and Trip Planning are provided. For the 3rd edition, the guide has been reorganised into 12 chapters to match the national park sections, however the 20 one day sections have still been retained within the notes. Of course, many walk the track in less than 20 days with 14 to 18 days being the most common.

This walk has become a classic well-known walk as it traverses some excellent arid scenery. Water has been provided by park management at most of the regular campsites along the trail.