Hey guys,

Danny here — the guy that you got the Git/TypeScript cheatsheet from.

Hope you’re doing well.

On the 6th of August, I will publish my first ever book to Amazon: “Mastering Design Patterns In C#: A Beginner-Friendly Guide, With OOP and SOLID Principles”.

It teaches you everything that you need to become a great object-oriented programmer.

The great thing is, all of the concepts in the book can be applied to almost any popular programming language, and will serve you for the rest of your programming life.

Many jobs will require you to know these principles well, and this book teaches everything you need in an accessible, beginner-friendly way.

Here are the first 3 chapters of the book (completely free) that teach you fundamental OOP principles, the SOLID principles, and Unified Modelling Language (UML) — principles that I believe every software developer should know:

Get your free copy here: OOP, SOLID Principles and UML eBook

If you enjoy the book and would like to then learn all 23 “Gang of Four” design patterns to write flexible, maintainable and elegant software, then you have a few options:

Preorder the full eBook from Amazon (if you're not from the USA, replace ".com" with your country's Amazon domain -- e.g. ".co.uk", ".in", etc.)
Get the full eBook as a PDF from Gumroad
Or wait until next week for the physical print copies (in paperback or hardback) to be available.

If you have any questions or suggestions, feel free to reply to this email :)

(Also, FreeCodeCamp recently accepted me as a content creator for their YouTube channel (they have 9.72M subscribers!!), and I will be publishing full courses on their channel in the coming weeks. Stay tuned!)

Thanks,

Danny

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