The object of the exercise is to produce proper 'ebooks' that can be read on an ereader or a computer/tablet with the appropriate program/application. I suggest downloading Calibre and storing your ebooks there.
When reading an ebook, you can search it, change the font size, add bookmarks and annotations and carry out various other things,depending on your ereader or program/application. A dedicated ereader such as a Kobo Aura would be good for reading accounts, eg The Voyage of the "Golden Lotus", but not much use for anything that depends largely on its illustrations because (a) the format is too small, (b) you can't alter the size of the image and (c) they are in greyscale only. These latter books you would want to read on a tablet or computer screen - and the bigger the better to match the original book!
There are two major incentives to get our collection digitised: to preserve what we have against loss and to enable members who don't live in the UK to access our collection. There are issues around copyright and the committee has been trying to find out if we could get round this by lending the books, the way libraries do. Up to now I've had no success discovered how we can do this. If anyone can help, I would appreciate this.