Ebooks have become very popular because they don´t need any space like printed books and you can have them always with you.
These books are available as ebooks yet:
Todd Burrier Amazon UK: http://www.amazon.co.uk/Todd-Burrier/e/B00IWIY0HQ
Arginine, OPCs and pH-Balance Amazon UK: https://www.amazon.co.uk/Arginine-OPCs-ph-Balance-Power-Nutrients-detoxing/dp/394345309X/ref=aag_m_pw_dp?ie=UTF8&m=A349165LHY28G
Todd Burrier Amazon USA: http://www.amazon.com/Todd-Burrier/e/B00IWIY0HQ
Arginine, OPCs and pH-Balance Amazon USA: https://www.amazon.com/Arginine-OPCs-pH-balance-Power-nutrients-detoxing-ebook/dp/B015Q1E0M6
To be able to read ebooks you need either
an e-reader, for example, Amazon Kindle or
an I-Pad or Tablet (for there is Amazon a free e-book software) or just
a computer, this is also available from Amazon a free software
Free Kindle reading software for computer, ipad et al
The Evolution of ereaders is constantly advancing. Meanwhile you really have the impression to look at a page instead of reading something at a screen !!! This is very eye-friendly.