Lifting Tackle Manual compiled by D. E. Dickie, P.Eng.
Butterworth & Co. Ltd. (1981)(orig. 1975, Ontario)
This is a professional's handbook telling all you need to know about wire rope, fibre rope, chain and slings. Its handsomely bound, clearly printed, fully illustrated and also has over 70 tables of useful data. Other chapters cover the reeving of blocks, operating procedures and precautions , and equipment such as drums , sheaves , hooks , rings, links, swivels, shackles, eye-bolts, turnbuckles, blocks, spreaders and equaliser beams. If too pricey for your pocket, persuade your organisation to buy it for a group.