A set of free materials by a Scottish comunity HSN covering some part of Secondary School program.
Ideal for general acquaintance with basic terms, formulas and laws.

Everything you need to know about real estate - no matter what your role - in one complete guide
Bonus online material!
From AAA-Tenant to Zoning Regulations, this alphabetically organized resource covers the laws, language, and concepts of real estate. You'll also have access to an exclusive online tool that makes it simple to calculate, transact, and profit from real estate.

Authors with more than 65 combined years in real estate give you:
Jargon-free definitions of almost 3,500 terms and topics
Up-to-the-minute information on everything from mortgages to accelerated tax write-offs
250 illustrations covering architectural design, completed formulas, charts, and graphs
Valuable lists such as 100 concepts to be an effective real estate agent, 50 must-know terms for homebuyers and sellers, 100 tax terms important to investors and homeowners, and secret buzz words and slang used by experienced real estate professionals
75 fill-in-the-blank, legally binding real estate forms
100 interactive real estate formulas
Real estate calculator for over 50 problems
Spreadsheet formulas for common real estate functions
Links to more than 450 real estate websites

This book can change your life!
Through Dale Carnegie's six-million-copy bestseller recently revised, millions of people have been helped to overcome the worry hobbit. Dale Carnegie offers a set of practical formulas you can put to work today. In the fast-paced world of the 1990's -- formulas that will last a lifetime!
How to Stop Worrying and Start Living deals with fundamental emotions and ideas. It is fascinating to read and easy to apply. Let it change and improve you. There's no need to live with worry and anxiety that keep you from enjoying a full, active and happy life!

Schaum's Mathematical Handbook of Formulas and Tables

Students and research workers in mathematics, physics, engineering and other sciences will find this compilation of more than 2000 mathematical formulas and tables invaluable. They will see quickly why half a million copies were sold of the first edition! All the information included is practical -- rarely used results are excluded. Topics range from elementary to advanced-from algebra, trigonometry and calculus to vector analysis, Bessel functions, Legendre polynomials and elliptic integrals. Great care has been taken to present all results concisely and clearly. Excellent to keep as a handy reference!