You have trouble learning how to code ? My topics are the following : Programming : C++, C, Java, Python, JavaScript (Electron) Web programming : HTML, CSS, JavaScript, Ajax, PHP, WordPress, etc. Systems : Bash, Linux configuration, Apache, Docker Database : SQL, MySQL, PostGreSQL, MongoDB, Google Cloud, Redis, NoSQL Other : IoC, Web services and API, ESB, Hibernate, RabbitMQ Algorithms and data structures, complexity, IA, geometric algorithms, functional Game programming : Unity, Unreal, SFML, SDL, HTML5 (canvas) & Websocket, CreateJS, Pixi, NodeJS, custom server, multithread, etc. Mobile & embedded : Android, PhoneGap, Arduino, RaspberryPi, Pebble, RoboRio