This introduction to NodeJS is written in basic tutorial style. This enables you to learn by doing and getting your feet wet.

It starts with an introduction to NodeJS and the surrounding ecosystem as well as installing the required software.

The next chapters focus on building a sample application in NodeJS using several of the current technics of application development such as MVC, realtime web and NoSQL.

The final chapter covers the deployment options available to deploy NodeJS applications.

All in all it is a good read and will enable you to get started. Unfortunately only NoSQL persistence is covered, given that most applications still work better with SQL databases that was a downside for me.

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Want to stock up on a bag of tricks and snippets to get your work done quicker, this is the book for you. Either as a system admin or as a developer you do yourself a great deal of good by reading and grasping the one liners in this book.

Perl being specifically designed to process text is an invaluable tool to Unix admins given that everything is a file on Unix.

The book provides 130 solid one lines which will enhance your arsenal of snippets or get you on the road to creating one.

The one liners are broken down into seven sections: Spacing, Numbering, Calculations, Arrays and Strings, Text conversion and Substitution, Selective printing and deletion, Regular expressions. There are two appendixes which over Perl's special variables and using the one liners in a Windows world.

Many of these one liners are drop in replacements of the piped commands with several Unix utilities that you have been using, which allows you to use a single tool in place of several chained commands.

The presentation style is great as all the one liners are explained and alternatives presented, in keeping with the Perl idiom "There is more than one way to do it"

Well what are you waiting for go out and get your copy now.

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This intermediate level book provides guidance on new methods of coding in C as well as identifying the common pitfalls and providing workarounds to them.

The book is split into two sections on dealing with the ecosystem around C development and the second the language itself.

This is not a teach you how to write in C book, users are expected to have a grasp of the language prior to starting out with this book.

The first section covers the development enviroment, issues such as building as well as linking and packaging of software for wide distribution.

Also covered is version control in a short chapter, this is one of the very well written parts of the book, the explanation of the Git version management system in this short chapter puts to shame some of the larger dedicated books on the market.

A short example of bridging other languages with C is provided in form of a C based python module.

The second section deals with the new age thinking around using the C language. And also provides insights in dealing with the know pitfalls of C such as memory management as well as string handling.

Covered in the second section as well are pointers, OO, Structures as well as libraries.

The downside for me was that section 2 should have been section 1 as it is logical to deal with the language first then the ecosystem around it later.

All in all, if you have some C experience of passing knowledge this book will help improve your pedigree. It is however not a book for the beginner.

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This book is a must read for any one involved in software development particularly cloud based applications.

The book describes the popular patterns used in development of scalable applications, coverage is given to the following.

• Horizontal scaling
• Queue centric workflows
• Auto scaling
• Eventual consistency
• Mapreduce
• Database sharding
• Multitenancy
• Busy signal handling
• Node failure
• Colocation
• Valet Key
• CDN
• Multi site

These are the patterns developed and used my most of the large web properties. The patterns are explained and real world scenarios presented. Great theoretical presentation of the concepts and ideas. I totally recommend this to anyone involved in Information technology.

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This book does a splendid job in describing the Amazon cloud products that can be used to provide IT infrastructure in the cloud.

The critical components of IT infrastructure such as DNS, Directory services, Mail, Voice and Instant messaging are covered.

The author takes you step by step through configuring software and cloud components to provide the above services.

The downside is the author makes sweeping factually incorrect statements like he states that there are no free fully featured IPSEC implementations, and yet projects like Strongswan exist which have basically implemented very RFC that exists for IPSEC.

The other glaring omission on his part is the connection of the LAN clients to the systems in the cloud, the VPN setup in the book is a host to host VPN. This basically means you have IT infrastructure that is marooned in the cloud with no clear way to access it from a LAN for say domain logon.

If you are investigating moving your infrastructure to the cloud i would recommend you read it, but note that you will need to do your own homework on how you connect your local users on the LAN to the systems in the cloud.

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Being an introduction to programming using the Python language this book strikes a good balance between explaining the programming theory and translating that into the Python Language.

All the fundamentals of programming are touched on, and there are examples to illustrate these concepts as well as exercises to get the reader to try and solve specific problems since programming is all about problem solving.

The downside for me was that all the examples involved some mathematical concept or formula, not many "real world" examples. Although this is more of an introduction to programming using the python language, i would think python specific concepts like modules and the standard library should have atleast featured even if as appendixes.

All in all, for anyone new to programming this is a great book to start with.

This book begun life as an open source freely available edition so please support the author by purchasing the dead tree version.

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A practical guide to get you started in the field of computer vision, this book is pitched to a wide range of readers from the basic enthusiast to professionals seeking to develop applications that use computer vision.

From introducing the concepts behind computer vision to actual practical implementation of these concepts from the simple to the more complex concepts like tracking of moving objects.

All the sample code is written Python using the SimpleCV framework which wraps the OpenCV, NumPy and SciPy libraries. The examples are well thought out and documented. The appendices include day to day use cases for the use of computer vision.

Computer vision applications are on the rise, with line checking cars, driverless cars, number plate recognition, people tracking in the mainstream or on the horizon this book is highly recommended to get you started.

I highly recommend you get yourself a copy, even if its just a small thank you to the authors for the work they put into working on this open source project.

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Written as the followup to the "Llama book" this book introduces more advanced concepts of the Perl programming language to take you from writing simple scripts to larger programs that are split up into modules as well as contributing such modules to the community via CPAN.

The concepts covered include modules, references, objects, testing and contributing to CPAN.

This second edition, brings the language coverage to Perl 5.14 with tit bits from Perl 5.16. It also introduces two (2) new chapters covering creating perl distributions as well as an introduction to Moose the Perl OO system.

Coming from 3 veterans of the Perl language, the book is well written and a great resource for any one wishing to improve their grasp of the language.

This is definitely highly recommended for anyone who uses Perl, even owners of the first edition will love the second edition.

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A quick guide to the PostgreSQL Database for users with prior experience with other DBMS. The book sets out to highlight the interesting features in PostgreSQL not present in other DBMS's

The book goes over Obtaining PostgreSQL, Basic Administration, Client tools, Data types, Constraints and Indexes, PostgreSQL specific SQL, Functions, Performance tuning and Replication.

The book has a niche in the world of PostgreSQL documentation as it is concise and reference like in comparison to the volumes of documentation in the PostgreSQL manuals.

The downside is that the authors keep referencing blog posts and other external resources instead of explaining them within the book although this may be problematic for users reading the physical book instead of the ebook.

Overall it is a good reference book that cuts down on the tons of material in the official PostgreSQL manual, not for beginners though.

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This book is intended as an introduction to regular expressions for readers who have no or limited knowledge of regular expressions. It does this particularly well by addressing all the fundamental concepts of regular expressions and also provides examples on how these concepts can be used to solve real world problems.

A chapter is devoted to each of the concepts, hands on examples are provided and references to various tools and languages in which these concepts can be used. The author makes an effort to introduce the reader to the various tools even experienced users will find this helpful as i did because by reading the book i was able to discover new tools like ack

For readers new to regular expressions this would be an invaluable resource as it gets you started on the concepts and also introduces you to the various tools available as well as provide you with a path to follow to build on the introductory knowledge it provides. For experienced users it may be a worth while read just to brush up on concepts and to discover a few new tools that are not already in your toolbox.

Overall, the book is well written and worth will investment, the only downside was a few grammatical mistakes, which could through off a beginner as the output from the commands will not be what is in the book.

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