- C# - C# Notes for Professionals book;
- Xamarin.Forms - Xamarin.Forms Notes for Professionals book;
- Git - Git® Notes for Professionals book;
- CSS - CSS Notes for Professionals book;
- HTML5 - HTML5 Notes for Professionals book;
- JavaScript - JavaScript® Notes for Professionals book;
- TypeScript - TypeScript Notes for Professionals book;
- Angular 2+ - Angular 2+ Notes for Professionals book;
- React JS - React JS Notes for Professionals book;
- Node.js - Node.js Notes for Professionals book;
- SQL - SQL Notes for Professionals book;
- Microsoft SQL Server - Microsoft® SQL Server® Notes for Professionals book;
- MongoDB - MongoDB® Notes for Professionals book;
- PowerShell - PowerShell® Notes for Professionals book;