This is the softcover reprint of the 1975 English translation of the
first three chapters of Bourbaki's Groupes et algebres de Lie. The first
chapter describes the theory of Lie algebras, their deviations,
representations, and enveloping algebras. Chapter two introduces free
Lie algebras in order to discuss the exponential, logarithmic and the
Hausdorff series. Chapter three deals with the theory of Lie groups over
R and C ultrametric fields.