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...

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...

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...

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...

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...

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...

A practical, production-focused guide to Microsoft SQL Server. Covers database design, T-SQL, indexing and performance tuning, transactions, security, backup and recovery, high availability, and monitoring — with ready-to-run code batches, hands-on labs, and operational checklists for real-world systems.

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...

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...

Vector Databases in Depth is a practical engineering guide to the data layer that makes semantic search, recommendation, and retrieval-augmented generation practical. It starts from a single observation: vector search is a systems problem, not a library call, and the difference between a prototype and a production system is measured in the same units as any other distributed system — recall, latency, cost, isolation, and operational discipline. The book walks through the full stack — why v...

Reese-Witherspoon-Book-Club-Pick - »Dieses Buch bricht dir das Herz und trägt dich bis zu den Sternen. Ich habe es geliebt.« Kiley Reid (Autorin von »Such a Fun Age«)Steph Harper ist überzeugt, dass nur der Weltraum sie retten kann. Vor einer Kindheit voller Angst und Flucht, vor dem Gefühl des Fremdseins; vor einer Familie und einer Heimat, die sie manchmal zu ersticken drohen. Zart, witzig und herzzerreißend zugleich erzählt »To the Moon and Back« vom Traum einer...

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...