the internet of thing a is a "big" topic. I find interesting this book "6LoWPAN: the wireless embedded Internet" written by two well-known authors in the field; the Authors of the emerging Constrained Application Protocol (CoAP): http://wiki.tools.ietf.org/html/draft-ietf-core-coap-18.
One more interesting read is: "The Internet of Things" From RFID to the Next-Generation Pervasive Networked Systems (Wireless Networks and Mobile Communications) by Huansheng Ning etal
i have listed the books from above discussion and some one new and web resources
1. Getting Started with the Internet of Things: Connecting Sensors and Microcontrollers to the Cloud (Make: Projects) [Kindle Edition] by Cuno Pfister
2. Designing the Internet of Things (Nov 2013) by Adrian McEwen & Hakim Cassimally
3. Internet of Things: A Hands-on Approach (1 Jul 2015) by Arshdeep Bahga & Vijay Madisetti
4. The Internet of Things (The MIT Press Essential Knowledge series) [Kindle Edition] by Samuel Greengard
5. Development Best Practices for the Internet of Things by Vincent Zimmer
6. Getting Started with Netduino: Open Source Electronics Projects with .NET by Chris Walker
7. Designing the Internet of Things by Adrian McEwen
8. Internet of Things with Arduino: Build Internet of Things Projects With the Arduino Platform [Kindle Edition] by Marco Schwartz
9. Internet of Things with the ESP8266: Create Exciting Internet of Things Projects Using the ESP8266 WiFi Chip by Marco Schwartz
10. Enabling Things to Talk - Designing IoT solutions with the IoT Architectural Reference Model Editors: Alessandro Bassi, Martin Bauer, Martin Fiedler, Thorsten Kramp, Rob van Kranenburg, Sebastian Lange, Stefan Meissner (open access springer)
11. Internet of Things: Converging Technologies for Smart Environments and Integrated Ecosystems (River Publishers' Series in Information Science and Technology) (1 Jun 2013) Editors Ovidiu Vermesan & Peter Friess
[FREE Book] Sensing as a Service for Internet of Things: A Roadmap
The Sensing as a Service model envisions to extract more value out of Internet of Things paradigm. This book aims to lay down a roadmap towards building the Sensing as a Service model on top of the Internet of Things ecosystem. https://leanpub.com/sensingasaservice
This book "Getting started with Internet of Things" will help you if you want to try to hand at building IoT products, but you do not know programming.