I have about 10 species of spiders on my list so this may go some way to inspire me to look a little more closely at some the easier ones to identify.
This book is good at pointing out the limitations of field ID of many/most species but it could help in getting to family or genus for many spiders that you'd potentially find.
Having said that I have enough on my plate trying to get to grips with beetles so I suspect this may only make brief appearances from the shelf over the coming months.
We will see. Looks very nice though.