1. A stator for an axial flux electrical machine, the stator comprising a plurality of circumferentially distributed conductive coils, each of the plurality of conductive coils configured to be connected to a phase of a multi-phase power supply and comprising at least one pair of active sections, wherein each active section extends in a generally radial direction substantially perpendicular to an axis of rotation of the electrical machine, wherein the generally radially extending active sections of each pair are pitched apart in a circumferential direction, and wherein circumferentially adjacent conductive coils circumferentially overlap to define spaces of a first type for receiving a flux guide, each space of the first type being a circumferential space between two adjacent active sections of two different coils, wherein each conductive coil comprises a plurality of pairs of active sections connected to each other in series, and wherein adjacent pairs of active sections circumferentially overlap so as to define a space of a second type for receiving a flux guide, the space of the second type being a circumferential space between two adjacent active sections of the same coil but different pairs of active sections of the coil.