as both a basis for the practical application of the techniques discussed, and as an educational resource to lay the foundations for future research. Volume 2 concerns the formation of C—C bonds by C—H activation of non-(het)arene substrates as well as C—H activation using special reagents or techniques. The formation of C—heteroatom bonds by predominantly arene C—H activation is also reviewed. For C—C bond formation, the material is subdivided into allylic, alkyl, and double C—H activation techniques, coupling using carbenes or radicals, and carbonylation or carboxylation processes.