Not all contracts are an agreement, but not all contracts are an answer; A contract is a legally binding agreement or relationship that exists between two or more parties to perform or refrain from committing certain acts. A contract can also be defined as a legally binding exchange of promises between two or more parties, which the law will enforce. In order for a contract to be concluded, it is necessary to guarantee an offer that accepts it, which must be taken into account. Both parties must intend to create legal reports The concept of unauthorized contracts: there are certain agreements that can be implemented by one party, but not on the option of other parties. It is up to that party to decide whether it agrees to apply the treaty or to render it unenforceable, i.e. to cancel it. Cancellation agreements are therefore both valid and void. The points-to-points circle of non-negotiable agreements indicates that they can be classified as nullity or valid depending on the parties to the assessment and therefore cover the scope of valid and invalid agreements. A contract is a legally enforceable agreement between two or more parties that creates an obligation to do or not to do certain things. The sources of contract law are generally governed and enforced by the laws of the state in which the agreement was concluded. Depending on the purpose of the contract (i.e. the sale of property, real estate credit), one of the two types of state law can govern a contract: the common law: most contracts (employment contracts, leases, general commercial contracts) are economic means, the contract is based on the notion of consensual exchange and has become broader in economic terms sociological and anthropological (see “contract theory” below). In American English, the term goes beyond legal meaning and encompasses a broader category of agreements.
 Each organization depends on all possible contracts, with customers and distributors, with sellers of goods and services, with owners, employees, banks, lenders and more. While oral agreements can be used in many relationships, there are many business situations in which executives and business owners must use a written contract, not only to ensure that the parties understand their obligations transparently, but also to have a binding contract. A written contract helps to illustrate the business relationship with the following cases, as all contracts are; In the case of an invitation to treatment where an invitation to treatment is only an invitation to submission. An invitation to treatment is an indicator of a party`s willingness to negotiate the agreement. This is a technique used by a party who wishes to make an offer to another party and cannot be interpreted, or that the terms are accepted as if it is a valid legal offer in itself. (Carlill v Carbolic Smoke Ball Company) . Displaying goods in a store is an invitation to process. (Pharmaceutical Society of Great Britain v. Boots Cash Chemists (Southern) Ltd). An ad containing information about the merchandise put up for sale and its price is usually an invitation to processing and not an offer. (Partridge vs.
Crittenden). Question: All contracts are contracts, but not all contracts are contracts? OR are you discussing the rule for forming a valid contract when a contract is concluded? Treaties and agreements are linked in many ways. The treaties mean that, in some areas, the agreement is such that it is whether or not it is national or international aspects of the agreements. By extension , the contract is an agreement between two or more competent parties, in which an offer is made and accepted and each party benefits from it. The agreement can be understood formally, informally, in writing, orally or simply clearly. Some contracts must be entered into in writing to be enforced. Examples of a contract are a lease, a change of contract or a lease.  According to the lawyer Sir John William Salmond, a contract is “an agreement that creates and defines obligations between two or more parties”10.