Books
There are many excellent books available
to help with all aspects of photogenealogy.
At the moment though, there is not one book
that can guide you through the whole photogenealogy process,
but I am working on that issue...
Digital asset management
Securing and accessing your digital images is the first step of photogenealogy. I found these books helpful when I first started.
Photo dating & identification
There are so many useful books available that I shall tell you my favourite authors: Robert Pols, Jayne Shrimpton & Stephen Gill. All have authored several excellent books. Other authors to look out for include Avril Lansdell, Madeleine Ginsburg & John Peacock.
Armed Forces
These books are really useful for helping you to date & identify your armed forces photos.
Graham Bandy presents Armed Forces Advice Hour for the Society of Genealogists.
Organising & archiving
Lost of help and advice in these books about how to organise your family history photos and to safely care for them.
Legacy
Ideas for passing on your photos to the next genearation
Others
Useful background information, advice and ideas.