Could you tell someone your bank password right now? If you can, that is the problem this guide fixes.
This book shows you how.What you'll be able to do:Say what one resolved ticket, generated report, or active customer actually costs youFind where the money goes in a real system, in about an hourCut your bill by 40% to 70% without making the product worse, and prove it didn'tStop a code change from tripling your costs before it shipsWalk into a budget meeting with a number and an argument instead of an apologyWhat's inside: sixteen chapters. Measure what you're paying for. Apply six levers, ordered by how much they pay back. Then keep the savings from creeping away, which is the part that decides whether any of this survives the year.
A complete circadian health and alertness manual for night shift workers, covering sleep protocols, light therapy timing, meal scheduling, burnout prevention, and long‑term recovery.
Aprende Python paso a paso, desde los fundamentos hasta conceptos más avanzados, con explicaciones claras, ejemplos de código y un enfoque práctico. Una guía estructurada para desarrollar habilidades sólidas de programación y aprender a resolver problemas con Python.
AI is changing how we work, learn and live, but understanding it does not have to be complicated. This practical guide explains how modern AI and LLMs work, what they can do, where they fall short and how to use them effectively without the hype.
Stop guessing at prompts. This visual workbook gives you 50 ready-to-run workflows, command cheatsheets, and debugging checklists for Claude Code, Cursor, and GitHub Copilot — so you can open any page and immediately know what to type.
A clear, beginner-friendly system for turning observations, conditions, and simple decisions into more productive fly-fishing days.
The intelligence is in the data. Learn to build AI systems that answer with grounded confidence, not fluent invention — through vector databases, RAG, and semantic search, from first principles to production-ready blueprints.
Blockchain Security: Attack and Defense Master offensive and defensive security techniques across smart contracts, DeFi protocols, bridges, rollups, consensus systems, and next-generation Web3 infrastructure. Blockchain ecosystems secure billions of dollars in digital assets, yet they remain one of the most aggressively targeted sectors in cybersecurity. From reentrancy vulnerabilities and oracle manipulation to flash loan exploits, bridge compromises, governance attacks, and Layer-2 weaknesses, modern blockchain security demands expertise that spans cryptography, distributed systems, protocol engineering, and adversarial thinking.
A calm, step‑by‑step NAS backup guide for home and small business users. Learn how to set up your NAS, automate backups, test recovery, and protect your files with confidence.

A free 4-page teaser: the position-size formula in plain words, a worked $100-account example, and a 1%-risk sizing table for small accounts.
CIS-SAM is an Implementation Specialist exam — it tests whether you can configure SAM Professional, not whether you know ITAM theory. This guide is organised against ServiceNow's published blueprint, domain by domain, and weights its depth the way the exam does. All five domains across 15 chapters, plus a 60-question practice exam with worked answers.
Building Advanced Algorithmic Crypto Trading Systems Design, engineer, and deploy institutional-grade algorithmic trading infrastructure for cryptocurrency markets, from nanosecond market data processing to live execution, quantitative modeling, and AI-driven trading strategies.