> flexible working time – you decide when you do the work and how much time you devote to it, > higher net remuneration – unlike other types of agreements, the contract does not require deduction of social security contributions for a given job, so you get the highest net salary > freedom in the performance of your work – you work anywhere, unattended; The only thing that matters is the outcome of your actions Not all agreements are necessarily contractual, as the parties should generally be considered legally related. A “gentlemen`s agreement” is an agreement that is not legally applicable and must be “only honorably binding”.    Contract law is based on the principle pacta sunt servanda (“agreements must be respected”).  The Common Law of Contract arose from the meantime defuct writ of assumpsit, which was originally an unlawful act based on trust.  Contract law is covered by the ordinary law of obligations, together with the unlawful act, abusive enrichment and reimbursement.  The contract contract (umowa zlecenie, also known as a conscientious action agreement) is a civil contract in which one entity (the buyer) requests a particular task and a second body (the contractor) undertakes to perform it. The order contract is always concluded for a specified period and is governed by Article 734-751 of the Civil Code. The Contracting Parties may be all natural or legal persons. . . .