Buy ebook

An e-book (short for electronic book,or ebook), also known as a digital book, is an e-text that forms the digital media equivalent of a conventional printed book, sometimes restricted with a digital rights management system. An E-book, as defined by the Oxford Dictionary of English, is "an electronic version of a printed book which can be read on a personal computer or hand-held device designed specifically for this purpose". Ebooks are usually read on dedicated hardware devices known as e-Readers or e-book devices. Personal computers and some cell phones can also be used to read ebooks.

Buying in has several meanings:

• In the securities market it refers to a process by which the buyer of securities, whose seller fails to deliver the securities contracted for, can 'buy in' the securities from a third party with the defaulting seller to make good.
• In poker it signifies the up-front payment required to participate in a given game or tournament.
• In management and decision making, buy-in (as a verb or noun) signifies the commitment of interested or affected parties to a decision (often called stakeholders) to 'buy in' to the decision, that is, to agree to give it support, often by having been involved in its formulation.

Buy-in rule on the UK equity market

On the English stock exchange, a transaction by which, if a member has sold securities which he fails to deliver on settling day, or any of the succeeding ten days following the settlement, the buyer may give instructions to a stock exchange official to "buy in" the stock required. The official announces the quantity of stock, and the purpose for which he requires it, and whoever sells the stock must be prepared to deliver it immediately. The original seller has to pay the difference between the two prices, if the latter is higher than the original contract price. A similar practice, termed "selling out," prevails when a purchaser fails to take up his securities.

The practice is not limited to the UK Stock Exchange but is found in various forms on most stock exchanges. The rules vary according to the local regulations, and the party which fails to deliver is usually penalised and may even be suspended.