Hi Mark, just to let you know… I’ve started work on Certificate IV in Fitness, Personal trainer course already… I have found it much more in depth than the Certificate III in Fitness, Gym Instructor course which requires more reading time. I’m reading up on periodisation, rehabilitation and sport specific training etc. Currently I’m reading the text you supplied and the basic strength/conditioning manual, your workbooks are very in depth and truly separates the men from the boys. ……Excellent stuff!!!!