I can't find the type of pics. that you want, but these books are both very good.

Gardening with Hardy Geraniums by Birgitte Husted Bendtsen
The Gardener's Guide to Growing Hardy Geraniums by Trevor Bath and Joy Jones

Your local library or book store should have them or you can order them online from some place like Amazon.

Here is a link that might be useful: Birgitte's book

Peter Yeo's book should be on your book shelf if you want to get in to Geranium. You should also buy the small RHS Wisley book Hardy Geraniums
http://www.amazon.co.uk/Hardy-Geraniums-Peter-F-Yeo/dp/0713485000/ref=sr_1_6?ie=UTF8&s=books&qid=1250715894&sr=1-6

http://www.amazon.co.uk/Hardy-Geraniums-Wisley-Handbooks-Hibberd/dp/1845333802/ref=sr_1_2?ie=UTF8&s=books&qid=1250715894&sr=1-2

Peter Yeo's book is definitely on my wish list. I am not familiar with the Wisley Handbook. Are there any other good books about hardy geraniums that you would recommend, pellie_grower?