KSA Digital books (except Legal Guide) will be updated monthly and the 1st year of updates is included with the initial purchase. Afterwards, there will be a yearly subscription fee of 50% of the current purchase price. You receive updates via download from our website or an email link. All KSA digital books are fully bookmarked for easy searching of topics. You must have a valid email address and internet access to activate the downloaded books. If you do not enter an email address before you add to cart your PayPal Email address will be used.