A previous reviewer made the shocking (but incorrect) assertion that the legality of the settlements is somehow in question. She is absolutely incorrect. See Article 49 of the Fourth Geneva Convention, which explicitly stipulates: "The Occupying Power shall not deport or transfer parts of its own civilian population into the territory it occupies."
Perhaps she should have read the footnotes of this excellent book, or just searched for the terms "prohibition on settlement of occupied territory" to see a comprehensive discussion of this question from a legal perspective.
Obviously many other people (not only the previous reviewer) may somehow fail to understand that the prohibition on settlement on occupied territory was designed specifically to prevent projects like the Nazi plans for Poland, in which large numbers of civilians were transferred to establish agricultural colonies in various areas. The prohibition is absolute and non-derogable (which means that a country can't opt out of it under certain conditions).
As such, the (il)legality of the settlements under international law is almost universally accepted, with the exception of a VERY small number of scholars seeking to justify this blatant breach of international humanitarian law (the law of war). This excellent book shows how the settlement movement has not only violated international humanitarian law, but also Israeli domestic law (see, for example, the Israeli Supreme Court decision ruling that settlements built on the land of the Palestinian village of Belin were illegal since they were built on land stolen from private owners, yet still allowing the Israeli settlers who broke into the unfinished buildings to remain in the homes).
An excellent, well-researched, and highly relevant book.