Image credit :https://flic.kr/p/fgBmVV by Tina Franklin on Flickr -Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0)
Google Slides are part of the G Suite and can be created for free - you just need an account with Google.
Once you have created your slide you can download it in different formats : you can choose the pdf format and then you can use one of the free platforms online which can help you publish your e-books. You need to have an account and you will have to upload the pdf. In just a few minutes you will publish your ebook.
This is the link to my slide online https://docs.google.com/presentation/d/1i3nnvBQOkSYaxzIK5AgqjLSd35Mg_0sMt-20yM_7r8I/edit?usp=sharing
This is the ebook online which you will find. The ebook can be easily found online and read online.
https://en.calameo.com/books/0051359822ec5a200af90
The Platform is CALAMEO: https://en.calameo.com/
This online tool has enabled me to create books that can be flipped. I have also a bookshelf online with a collection of my ebooks and documents I have written for my CPD. I have created the documents online and I have used the pdf documents thanks to Google Slides. Once I created the account I uploaded the document online and created a digital book which can be shared and read online.