Here's a Tweet by the author describing this series of posts:

My bitcoin UTXO article trilogy is complete!

The 1st article is an introduction to what a UTXO is, and why they matter.

The 2nd focuses on transaction fees, and why holding a lot of UTXOs can get expensive.

The 3rd goes through important privacy considerations.

Links below!👇

https://twitter.com/tom_honzik/status/1579932951491801090 [Nitter]

See also the posts, found here on SN, for the other two articles from this trilogy:

The first article:

What is a bitcoin UTXO and why do they matter? #38226 https://unchained.com/blog/what-is-a-utxo-bitcoin

The third article:

UTXOs, addresses, and CoinJoins: Preserving privacy in a bitcoin economy #76971 https://unchained.com/blog/bitcoin-utxo-privacy