Hi, a warm welcome to the site. As yet there still isn't a handbook dedicated to this course so you will be reliant on searches and even more so on the support materials given to you by your tutor/course provider.
The legislation for looked after children is identified on the NSPCC site -
children in care and a list of documents relating to
looked after children on gov.uk
Visits page 99+ of the care planning, placement and case review
Allowances - the information in the
Family and Friends Care publication has additional information about allowances and financial support. Check your local authority's website as it's possible that they've published information explaining the right and entitlement of children in their care eg.
Lancashire's explanation of allowances
Contact with family members - page 42+
Preparation for reviews - pages 115+
Advocacy - guidance on statutory advocacy services on gov.uk under the Children act 1989
Independent visitors page 106+
Children and young people's continuing care national framework on gov.uk
Children leaving care on childrens commissioner.gov.uk and
Stay Put scheme on gov.uk
Children in care on Citizen's advice
Hope this helps a little, please do contact your course provider and ask them about the recommended sources so you can research confidently xx