I created a photo book of photos of my son when he was 40 last year.
I did it with Photobox
https://www.photobox.co.uk/
I found it VERY easy to create the book.
You register for the web site, upload your photos, then go in to "book creation".
You can then add your photos to the book, then move them around, resize them, add text or delete text, move photos to different pages or change the order and so on. All very easy.
You can also specify the front and back cover photos and cover text, choose the colour, style and design and so on.
It is all very easy to do.
Plus you can change the book as much as you like before sending it to be printed.
You don't have to pay till the end so why not just go the web site and play around (to get some experience).
Also note that you can edit the book, then if you are not finished come out of the web site, then go back to it later and carry on from where you were (you don't lose what you have done), which is very useful.
I did two books for my son (to cover his early life and later life) and found the second book went better than the first as I had learned from doing the first book.
So I suggest going to photobox (or other photo web sites) and "play around" for a while getting the hang of it before then doing your final book that you send for printing.
The more pages you do the more it costs, but I think that is all sorted out in the final cost.
Finally, once you register for the photobox web site you start getting emails and these offer all sorts of "deals" such as money off or free postage etc so look for these deals as they can save quite a bit of money.