Paperback, 550 pages
Published May 17, 2021 by Manning Publications.
Distributed across servers, difficult to test, and resistant to modification—modern software is complex. Grokking Simplicity is a friendly, practical guide that will change the way you approach software design and development. It introduces a unique approach to functional programming that explains why certain features of software are prone to complexity, and teaches you the functional techniques you can use to simplify these systems so that they’re easier to test and debug.
This is a very nice intruduction to functional programming, including some elegant approaches to software design. Now, if you have some experience with functional programming, you can skip quite a bunch of parts, and be warn, it's a bit repetitive for some concepts. But all in all I think it's one of the books I'll recommend for starting programmers.
Purchasable
https://grokkingsimplicity.com/.