====== Introduction ======
{{:en:iot-open:czapka_p.png?50|General audience classification icon}}{{:en:iot-open:czapka_b.png?50|General audience classification icon}}{{:en:iot-open:czapka_e.png?50|General audience classification icon}}\\

For now (2024-2025), we have experienced rapid growth in the Internet of Things (IoT) domain, as expressed by the number of scientific publications, the market volume, and other indicators suggesting that IoT has come to stay for long.
IoT is one of the top priorities in Horizon Europe’s Research and Innovation strategic plan, which, among different Thematic areas, recognizes IoT as one of the most important under the Technology thematic group [European Commission, Directorate-General for Research and Innovation, Synopsis report – Looking into the R&I future priorities 2025-2027, Publications Office of the European Union, 2023, https://data.europa.eu/doi/10.2777/93927]. 
Knowing the importance of IoT technologies, how can one contribute to the domain by developing, using and designing IoT systems for different applications? 
This book, as a continuation of the previous one, “Introduction to the IoT,” provides the background needed for the design methods, IoT data analysis, cybersecurity essentials, and other vital topics. 

=== Content classification hints ===

The book composes a comprehensive guide for a variety of education levels. A brief classification of the contents regarding target groups may help in a selective reading of the book and ease in finding the correct chapters for the desired education level. To inform a reader about the proposed target group, icons are assigned to the chapters level 1 (top) and 2nd level chapters. The list of icons and their reflection on the target groups is presented in the table {{ref>icons}}.

<table icons>
<caption>List of icons presenting content classification and corresponding target groups</caption>
^ Icon                                                                           ^ Target group                                                                                                                             ^
|  {{:en:iot-open:czapka_p.png?50| General audience classification icon }}       | General **P**ublic audience: all those who want to get familiar with basic concepts but do not necessarily step into technical details.  |
|  {{:en:iot-open:czapka_b.png?50| Bachelors (1st level) classification icon }}  | **B**achelor and Engineering level students                                                                                              |
|  {{:en:iot-open:czapka_m.png?50| Masters (2nd level) classification icon }}    | **M**asters students                                                                                                                     |
|  {{:en:iot-open:czapka_e.png?50| Enterprise and VETS classification icon }}    | **E**nterprise, VETS and technical                                                                                                       |
</table>

<WRAP excludefrompdf>
The book is organised into the following chapters:
  * [[en:iot-reloaded:IoT_Design_Methodologies]],
  * [[en:iot-reloaded:IoT_Architectures]],
  * [[en:iot-reloaded:IoT_Data_Analysis]],  
  * [[en:iot-reloaded:cybersecurity_in_iot_systems]],
  * [[en:iot-reloaded:Blockchain]],
  * [[en:iot-reloaded:Green_IoT]].

</WRAP>