Hello, Lauren, and welcome to TP. I wish you the best of luck with your studies and career in nursing.
I have a relative, aged 73, with Alzheimer's type dementia. Due to problems of personality and relationship, as well as progression of disease when diagnosed, I have not pursued a life story book with said relative, but recognize it may be a useful tool for others.
I am torn about the idea of an electronic version of a life story book. For example, my relative with dementia can still (usually) recognize a physical photo or drawing as such, but is unable to view a photo on our mobile phones and "see" it as a photo. This is not a vision problem, but something else interfering. I suspect it's the dementia interfering in some neurological way, but it could also be this person's pre-dementia resistance to using a computer of any sort manifesting, or both, or something else.
I can also tell you that there is no chance this relative would be able to use a Kindle, iPad, or other device, but can and does still read (if not understand) a physical book. As I'm sure you know, people with dementia are often unable to learn a new skill and will, over time, lose the ability to use skills learned pre-dementia. And, again as I'm sure you know, certain types of dementia interfere with the ability to visually process information and something as simple as a coloured, patterned shirt or carpet or wallpaper can be terribly distressing to the patient.
Having said that, I can see that an electronic version of a life book might be appealing to younger relatives of people with dementia, and if it's a way to engage family in creating something that might be of value to them later on, even if the person with dementia gets no benefit, then it could well be worthwhile.
Also, as the population ages, it is possible that people in their teens, 20s, 30, and 40s now, who develop dementia as they age, would be able to continue to use computer, iPads, mobile phones, and other devices after they develop dementia, as it will be a long-term memory skill for some of them. I do not know if there has been any research about this yet, and doubt it, but you could do a search of the literature to see.
So while I would not use an electronic life book with this particular relative with dementia, that is not to say it's not a good idea, or that I would not use it in the future, with another person.
Best wishes to you.