AeroCourse requires you have up-to-date workbooks for the seminars and strongly recommends Aviation& Meteorology: weather fundamentals as a reference for both IFR and ATPL study. In addition to these materials there are other helpful references and supplies. These can be obtained from Aviation bookstores near you or online:

Flight Calculator

The Whiz Wheel or  Professional Flight Computer for flight calculations.

Instrument Procedure Manual

The new Instrument Procedures Manual is a thorough revision, with expanded content, to this long-established and ubiquitous title. It provides students, as well as experienced pilots, with information on today’s aircraft, satellite and ground-based instrument systems, departure, en-route and approach procedures, and air traffic control regulations. Every phase of IFR flight is discussed in terms of its safety and efficiency. This publication is also beneficial to the helicopter pilot, covering theory and application of helicopter attitude instrument flying.
Aviation Publishers.

From the Ground Up

A comprehensive book detailing what you need to know when considering a career as a pilot. This provides information on aircraft operations, air law, meteorology, navigation and general airmanship for the would-be professional pilot.

Fly the Wing

by Jim Webb
Jim Webb discusses rules of thumb and techniques of flight operations. Intended as guide to supplement training material, it is written for those who already have a commercial license and instrument rating and who aspire to fly left seat as a professional pilot. In an easy-to-read style, this book covers all aspects of flying from ground school and study habits to advanced aerodynamics, low level wind shear and weight and balance. Fly the Wing is a must for any pilot who wants to keep on top of piloting techniques and philosophies at all levels of flying.

Advanced Aircraft Systems

by David Lombardo
For any pilot making the transition to a turbine-powered aircraft, this book gives a thorough understanding of how each system in advanced airplanes operates. Basic electric principles, theory, components, and practical application of typical turboprop, turbojet and turbofan aircraft are covered. Hundreds of helpful diagrams make complex systems easier to understand.

Advanced Pilot Flight Manual

by William K. Kershner
TAFS and METARS included, includes FAA written test questions for airplanes, includes information on advanced types of airplanes.

The Turbine Pilot Flight Manual

by Gregory N. Brown and Mark J. Holt
The Turbine Pilot’s Flight Manual provides complete, understandable “how things work” explanations of turbine aircraft. High speed aerodynamics, engines and systems of both turboprops and jets are covered along with data needed by pilots prior to recurrent, upgrade or transition training.