Copyright, Designs and Patents Act 1988: Primary legislation governing intellectual property rights, covering protection of literary works (author's text), artistic works (illustrator's artwork), moral rights provisions, copyright duration, and rights assignment/licensing

Contracts (Rights of Third Parties) Act 1999: Legislation determining whether and how third parties may have enforceable rights under the collaboration agreement

Consumer Rights Act 2015: Relevant if either the author or illustrator is contracting as a consumer rather than a business entity

Equality Act 2010: Ensures non-discrimination provisions are properly incorporated into the agreement

Data Protection Act 2018 and UK GDPR: Governs the handling and protection of personal data shared between parties during collaboration

Common Law of Contract Principles: Fundamental legal principles including offer, acceptance, consideration, intention to create legal relations, and certainty of terms

Industry Standards: Guidelines and best practices from organizations such as Society of Authors and Association of Illustrators

Competition Law: Regulations concerning restrictive covenants, exclusivity arrangements, and fair competition

Tax Legislation: Considerations for VAT and employment status (independent contractor vs. employee relationship)

Intellectual Property Ownership: Specific provisions detailing ownership rights, transfers, and licenses of created works

Revenue Sharing Framework: Structure for how income from the collaboration will be divided between author and illustrator

Creative Control Provisions: Terms governing approval rights, creative decision-making, and revision processes

Project Management Terms: Specifications for deadlines, deliverables, and project milestones

Attribution Requirements: Terms specifying how parties will be credited in the work and related materials

Termination Clauses: Conditions and procedures for ending the collaboration agreement

Dispute Resolution Mechanism: Procedures for handling disagreements, including mediation or arbitration provisions

Confidentiality Provisions: Terms governing the protection and non-disclosure of sensitive information shared during collaboration