4-tile spaced rail BPs to quickly lay bi-directional rails, in cardinal directions and 45 degree diagonals. Includes T-intersections, 4-way intersections, and a few handy miscellaneous BPs. Not a very big book - only 18 BPs - so it's reasonable to select what you need just through shift+scrolling with the book in hand. Most of these BPs will seamlessly connect to each other, either at chunk edges (for cardinal BPs) or by slight overlapping at the edges (for diagonal BPs). Some require a bit of manual connection, namely the 90-45 T-intersection.
All BPs include a chunk-centered (or centered+corners for diagonals) Big Power Pole to transfer power as well.