Model Railroad Layout Planner 4th Edition features 90 unique custom track plans in N, HO, O & G scale. Track plans utilize track sections from the most popular brands and trak types like Bachmann EZ Track, Kato Uni-track, Life-Like Power-loc, MTH Real Trax, Lionel O Track, LGB G Track, Trix N Track, MTH Scale Tracks, Aristocrat G Track and others. Nearly all plans include necessary part list and all plans include overall dimensions of the layout. There is also a resources section with tons of other useful resources to assist in building your model railroad layout. Just real unique model railroad track plans and resources no fluff, subjective opinions or useless rambling like most other similar publications.