Start with high-confidence estates & trusts books, then narrow by subgenre or adjacent topics.
Beyond the Grave, Revised and Updated Edition
Jeffery L. Condon
The Family Office
William I. Woodson, Edward V. Marshall
The Wall Street Journal Complete Estate-planning Guidebook
Rachel Emma Silverman
My Mother's Money
Beth Pinsker CFP®, Beth Pinsker
Family Capital
Gregory Curtis
Borrowed From Your Grandchildren
Dennis T. Jaffe
The Complete Family Office Handbook
Kirby Rosplock
Complete Family Wealth
James E. Hughes, Jr., Keith Whitaker
Wealth of Wisdom
Tom McCullough, Keith Whitaker
J.k. Lasser's New Rules for Estate, Retirement, and Tax Planning
Stewart H. Welch III, Stewart H. Welch
Living Trusts for Everyone
Ronald Farrington Sharp
The Smart Woman's Guide to Building and Protecting Wealth
Ann-Margaret Carrozza
The Executor's Handbook
Theodore E. Hughes, David Klein
ABA/AARP Checklist for My Family
Sally Balch Hurme
Values Over Valuables
Harmon Kong