The Peco 'Shows You How' series of booklets give practical, clearly laid out information and instruction on a wide range of model railway topics. This booklet gives an overview of 00 Gauge modelling and explores the potentials of the most popular modelling scale; see our 'Guide to 00 Gauge Modelling' (Ref PM-206) for an in depth, practical guide to building a layout in this scale. For details of N Gauge Modelling, see our booklet Making a Start in N (No 7), or the 'Guide to N Gauge Modelling (Ref PM-204).