Practical Python for Beginners is a friendly step-by-step guide for new programmers who want to learn Python without confusion, pressure, or overwhelming theory. This book introduces Python basics through clear explanations, simple examples, and useful beginner projects. Readers learn how to think in steps, use variables, work with decisions and loops, organize data with lists and dictionaries, write functions, handle files, debug common mistakes, and build confidence through small practic...

A practitioner's handbook on building sagas for distributed transactions, told through one running example: a digital reading platform's purchase flow — charge the card, grant access, sync the library, send the receipt — spanning four services with no shared database and no distributed lock. Starting from why cross-service transactions don't compose and why two-phase commit isn't the answer here, the book builds the same purchase saga three times: as an orchestrated state machine, as a cho...

For most of its history,.NET was a managed runtime for business applications. The pitch was productivity: garbage collection, a rich standard library, and a JIT compiler that handled the hard parts of code generation for you. If you needed raw speed, you reached for C++ or Rust. That era is over..NET Systems Programming is a practical guide to the platform as it exists today — a platform that ships with Span, stackalloc that works from safe code, ref struct, hardware intrinsics, Native AOT...

Your books sit in several stores, a library platform, maybe a translation deal, and your memory is the only record of what you agreed to. This guide shows independent authors and small publishers how to replace that guesswork with a one-page map for each title. You will learn to list every channel, work out which territories you hold and which you have licensed, and summarise the terms that matter: price rules, royalty basis, payment timing, exclusivity, renewal and exit. A worked example ...

Should your books go through distributors and wholesalers, or stay with direct sales and print on demand? This practical guide helps independent publishers, self-publishing authors and library or archive staff weigh the choice with real arithmetic instead of guesswork. You will see how discounts, fees and returns divide a cover price, compare the main routes to readers, and test a decision with a small pilot. Further chapters cover approaching distributors, how libraries and schools buy, e...

Kotlin is the language Android development settled on and the JVM ecosystem is embracing. It is concise, null-safe, coroutine-native, and fully interoperable with Java. This book teaches it end to end — from syntax and data classes to coroutines and Kotlin Multiplatform. You will cover the type system and null safety, functions and higher-order functions, classes and sealed hierarchies, generics and variance, collections and sequences, and the coroutine model that makes structured concurre...

Object-oriented programming is not a single thing. It is a family of ideas that C#, Java, and Python realize in strikingly different ways. This book teaches the paradigm by showing every concept three times — once in each language — so you can move between them without losing your footing. It begins with encapsulation, inheritance, and polymorphism, then moves into abstract classes, interfaces, and the case for composition over inheritance. It covers design patterns, generics, exception hi...

Logging, security, transactions, caching, retries — these concerns cut across every service method in every enterprise application, and implementing them manually produces the same boilerplate in hundreds of places. Aspect-Oriented Programming removes that duplication. This book teaches AOP on both sides of the enterprise divide. It covers AspectJ, the reference implementation whose vocabulary shaped every AOP framework after it. It covers Spring AOP, the proxy-based framework used by most...

People partway through an isotretinoin course (the drug long sold as Accutane) keep saying some version of the same thing: nobody told them it would be like this. Not the acne clearing up — the paperwork, the chapped-everything, the joints that suddenly ache, the mood swings nobody warned them about, and the mistake they made three months after finishing that undid half the progress. Isotretinoin Side Effects Month by Month is the walkthrough that general acne books only mention in a cauti...

You were told to do your Kegels, you squeezed something, and nothing changed. Or you leaked a little again this week and did not know who to ask. You are far from the only man in that spot, and it is a muscle problem with practical answers, not something to be embarrassed about. Pelvic Floor Exercises for Men is a frank, step-by-step guide written only for men. It explains the male pelvic floor in plain language, shows you how to find the right muscles (most men grab the wrong ones at firs...

Practical Algorithms with Python is a hands-on guide for beginner-to-intermediate developers, self-taught programmers, computer science students, data analysts, and working developers who want to improve their algorithmic problem-solving skills. The book explains practical ways to think through programming problems using data structures, search strategies, graph traversal, optimization patterns, and basic machine-learning concepts. Readers learn how to choose the right structure for a prob...

Do you reach for the wall on the stairs, grip a shopping cart a little tighter than you used to, or avoid the curb because you do not trust your feet? Feeling unsteady is common after sixty-five, and it is not something you have to simply put up with. Balance Exercises for Seniors is a respectful, plain-language program for adults who feel unsteady, have had a fall, or are afraid of falling. Unlike general fitness books, lifting programs, or guides to one diagnosis, it is built around a si...