The Lucanid Beetles of the World is the same as volume 1 in this series, published in 1994, but is a completely updated new book and in now presented as a 2-volume set rather than a single volume. The first book contains 488 pages of text, and the second 248 colour plates. In total, 1414 species in 105 genera are illustrated in colour. Large to middle size species are illustrated in real size. Small species are illustrated in close up. A total of 376 holotypes (239 species & 137 subspecies) and many paratypes are illustrated in colour.