The title is in itself a paradox, not unfit for G.K. Chesterton, and even more if you read a more clear title; this is a handbook for illegal subdivisions. Urban planning was born to make possible a living environment of quality for the whole of the population. And this is why this book is both an abomination and a much needed publication, depending on who judges.
The handbook appears in Argentina, a country which is not in the worse situation regarding that matter in Latin America; this is perhaps one of the reasons why a team at the Faculty of Architecture, Design and Urban Planning of the University of Buenos Aires, lead by Viviana Asrilant, gets to think that facing the problems to solve this situation for decades, such an initiative can be of help. There seems to have been a help by the Ministry for Public Education.
The handbook follows this table of contents, which seems to consider as a given fact the existence of an organized group of settlers:
1- Who may use the handbook
2- How to build your neighborhood
3- How to legalize your neighborhood. Legal way to regularize domains.
4- Ways to access housing
5- The organization and the dynamics of groups
Apparently (I do not know the argentine law so I cannot judge in detail) there seems to be a serious approach to each item, including warnings against the illegality of some actions.
I do not believe this to be a solution for such problems. As a matter fact, I do not think illegal action and property conflicts to be a good way anywhere; facing the consequences of illegality for yourself or your family can be much worse than what can be thought of. This handbook is probably closer to the ideal of open-source urban planning (or more properly, a planning hacker’s cookbook) than many European or North American; and this is a relevant question, as an open source manual gives you access to a knowledge, but by no means reduces it complexity or gives you the complete knowledge of a complex matter.
This publication also raises an additional question, even more after two weeks with posts about something as simple at first sight but as complex, as the handbook shows, as a street, its design and its building. Today there is a certain interest worldwide for this kind of settlement, mainly by urban planners and other experts, sometimes with a fascination that seems closer to aesthetics than to a real experience of a life there. And if it is interesting to know how neighborhood improvement projects work in cities that seem to have a certain success, as Medellin and Rio de Janeiro, it could be even more interesting to see what is waiting down the line by looking at how things have been done in countries that are thought to have solved the problem during the last decades. As for each favela or African slum there was probably a Spanish poblado chabolista after the civil war, a Hoovervile in the US during the Depression, a bidonville in France during the 1950s-1960s or other examples in more advanced countries.