Hi ElleJH,
If you are selling digital services to consumers in the UK from overseas then there would be a requiremnt to register for VAT in the UK and charge VAT at 20% to your customers.
Please see the definition of digital supplies here:
Definition of ‘electronically supplied’
If your supply is an electronic supply but not a 'digital supply' as per the above guidance and you are supplying this from overseas then there would be no VAT implications.
If you are supplying ebooks and paperbacks then these would normally be Zero rated for VAT purposes.
Please see the guidance here:
E-publications
Thank you.