In this revised edition, the explanatory material and the worked examples have been separated into two sections. This change makes accessing of material simpler with all chapters being cross referenced to the appropriate worked examples, and all worked examples cross referenced back to the appropriate chapter and other relevant worked examples. The chapters in Part 1 have been re-arranged to suit the Work Classification order of Section 8 of CESMM 3. Both these changes should make the book more user friendly.