Just make it into a PDF
A new innovation for publishing for photographers: just turn it into a PDF.
Why? PDF as the most efficient way to compact your photos. Easy to download, share and store. PDF as very open source friendly.
Pro tip: if you want to make a bunch of photos into a quick and easy PDF e-book, just select all your images in MacBook finder, and then click the button create into PDF. Afterwards, use PDF squeezer, to downsize the image to 75 dpi.