Any farmer in the UK has to deal with many aspects whilst practising his/her art - perhaps before you get too far with your book you should read and learn the content of the following websites - the list is not exhaustive :
1. http://www.europeanlawmonitor.org/eu-policy-areas/the-common-agricultural-policy.html - read all directives and obey - the European Commission governs our country
2. http://www.defra.gov.uk - read all publications, acts of parliament, etc as variously referred to
3. http://www.pesticides.gov.uk - learn all chemicals, uses and properties
4. http://www.naturalengland.org.uk - be a good greenie
5. http://www.rpa.gov.uk - claim your annual social welfare payment for the environment
6. http://www.environment-agency.gov.uk - keep the air soil and water in good condition
7. http://www.rspca.org.uk -currently keen on chickens but can turn up for piglets health etc.
8. http://www.soilassociation.org - orgasmic farming
For extra light reading, mainly good news, basic farming guidance - farmers weekly, also National Farmers Union, Country Landowners and Business Association, Tenant Farmers Assoc., Pig Assoc., Sheep Assoc., - these can be googled.
As you progress through the list you will find more avenues opening up and after several months you will be ready to visit a farm!