Can you ever have enough resource materials in your personal national parks library? It's doubtful. And if you're looking to add some resources, the National Parks Traveler can help you.

In addition to our latest eBook, Changing Climate, Changing Parks, there's a collection of the Traveler's Essential Guides on Amazon. These quarterly digital guides, while not cranked out last month, contain a lot of "ever green" content that doesn't age.

In National Parks Traveler's 2nd Annual Essential Guide to Paddling the Parks, 2015, you'll find great spots to paddle from Everglades National Park to Voyageurs National Park. As a bonus, there's our exclusive directory to all parks where you can legally paddle, float, or SUP.

Among the park units included in this guide are:

• Channel Islands National Park
• Dinosaur National Monument
• Everglades National Park
• Grand Canyon National Park
• Voyageurs National Park
• North Cascades National Park
• Fiordland National Park

Other Essential Guides from National Parks Traveler available on Amazon include:

Essential Park Guide Spring 2018

Spring is a time of renewal across the National Park System, a time to shuck off cabin fever and head to the parks. But where should you head, what should you do?

Fortunately, you can turn to our Essential Park Guide, Spring 2018, for some ideas. Inside this 46-page magazine you'll find some history from the parks in a story that looks at achievements of the Civilian Conservation Corps, see what impact the 50th anniversaries of the National Trails System and Wild and Scenic River Act have left on the parks, learn about Portugal's only national park, and get a sense for the meals that await you along the Natchez Trace Parkway.

Essential Park Guide Winter 2017

Winter can be a cold, blustery, and snowy season. But it also can be magical in the National Park System, with endless miles to cross-country ski or snowshoe, snowmobile trails, and wildlife on the move.

In Traveler's Essential Park Guide Winter 2017-18, we examine some great winter destinations, places such as Yosemite National Park with its tall trees, Apostle Islands National Seashore with its ice caves, Olympic National Park with its upper elevation snowfields, and Katahdin Woods and Waters National Monument with its great mix of snowsports. You'll even find a four-page chart to help you settle on a winter park destination.

We even tempt you to consider a long-distance hike, and provide the information to get you planning for your long walk.

Essential Park Guide Fall 2017

Organ Pipe Cactus National Monument is back on the circuit for national park lovers, and Traveler's Essential Park Guide for Fall 2017 includes a feature on this Sonoran treasure. And you'll also find a story laying out a three-day plan of attack for visiting Hawai'i Volcanoes National Park.

Being fall, we've also including an article on photography tips for capturing wildlife across the National Park System, and a list of parks where you got spot a wide range of species, from elk and bison to elephant seals.

Essential Park Guide Summer 2017

Summer is one of the best seasons in the National Park System.

And summer 2017 will be particularly memorable for folks who are able to visit a park on August 21, when a total solar eclipse will darken a swath of the country, from John Day Fossil Beds National Monument in Oregon, through Grand Teton National Park in Wyoming, and eastward into Congaree National Park in South Carolina.

Along with exploring this eclipse, Traveler's 42-page Essential Park Guide Summer 2017 takes a three-day look at Glacier National Park, looks at how the National Mall in Washington, D.C., is being cared for, and delves into the creative side of the National Park Service's Midwest Region. Elsewhere in our summer issue you’ll find articles on places to spend a few hours, or a few days, fishing, and where to go hiking in Yosemite National Park. And there’s even an article on interesting facts on Dry Tortugas National Park that could aid you in a national park trivia contest.

Essential Park Guide Spring 2017

Spring can be one of those iffy seasons in the National Park System. You might run into warm, sunny days with an easy breeze at your back. Or, you could find yourself being pelted by sleet, battered by a stiff wind, with grey clouds scooting by overhead.

One thing you can count on, though, are wildflowers; glorious wildflowers and trees in colorful bloom. All these floral species work in concert to color these landscapes. In honor of this kaleidoscopic outburst, this 56-page guide features some of the best places in the parks to find wildflowers.

You'll also enjoy a spring getaway at Great Smoky Mountains National Park in our Essential Park Guide Spring 2017, learn about some great Canadian national parks, and explore some great paddling destinations, such as Katahdin Woods and Waters National Monument.

Essential Park Guide Winter 2016

Wondering how to enjoy the national parks through the winter? Download a 36-page digital version of the Essential Park Guide, Winter 2016-17, for a nice variety of ideas. You could consider visiting Big Bend National Park in Texas, exploring the newest national monument, Katahdin Woods and Waters, or go ice climbing at Pictured Rocks National Lakeshore.

You'll also find articles on:

• Bent's Old Fort National Historic Site
• Mount Rainier National Park
• Pictured Rocks National Lakeshore

Essential Park Guide Fall 2016

Traveler's Essential Park Guide for Fall 2016 took a closeup look at Everglades and Shenandoah national parks, and gazed south to Costa Rica and Manuel Antonio National Park where you'll find sloths and toucans. Within the covers you'll find a three-day itinerary for visiting Everglades, as well as details on some of the charming gateway communities that rim Shenandoah National Park.

You'll also find seasonal stories on Dry Tortugas National Park, Rocky Mountain National Park, and Yosemite National Park.

Essential Park Guide Summer 2016

Road trips, hikes, and exploring the parks are on your to-do list for summer. To help you out with that, turn to Traveler's Essential Park Guide Summer 2016.

In this, our largest (at 58 pages) Essential Guide yet, we suggest how to spend three glorious days in Crater Lake National Park in Oregon, experience an overnight in a lockkeeper's house at Chesapeake & Ohio Canal National Historical Park, and trace the efforts of the Ranger of the Lost Art to preserve and protect iconic national park posters made by the Works Progress Administration.

Essential Park Guide Spring 2016

While it’s great to see more and more people turning to the parks for enjoyment, relaxation, and recreation, not everyone enjoys milling crowds in the parks. With those folks in mind, we’ve put together some strategies, beginning on page 9 of our Essential Park Guide, Spring 2016, you can turn to for avoiding, to a certain extent, crowding on your national park vacation.

Parks featured in this guide include:

• Cabrillo National Monument
• Death Valley National Park
• Joshua tree National Park
• Dry Tortugas National Park
• You'll also find national park road trips and seasonal looks at Rocky Mountain National Park and Yosemite National Park.

Essential Park Guide Winter 2015

Traveler's Essential Park Guide for Winter 2015-16 takes you to Badlands National Park in South Dakota, Gorongoza National Park in Mozambique, and even makes a stop at Virgin Islands National Park in the Carribean.

Other parks featured in this 46-page digital guide are:

• Glacier National Park
• Rocky Mountain National Park
• Yosemite National Park
• You'll also find ways to enjoy winter in three dozen other units of the National Park System, from Chesapeake and Ohio Canal National Historical Park to Theodore Roosevelt National Park.

Essential Park Guide Fall 2015

Fall arguably is the most colorful season of the year in the bulk of the National Park System, whether you head east or west. From Acadia National Park in Maine south through Great Smoky Mountains National Park in Tennessee and North Carolina and even down into Alabama at Little River Canyon National Preserve, the varying hues of gold, umber, and rouge blend with the dwindling greens of maples, beech, oaks, and other hardwood species.

In Traveler's 50-page Essential Park Guide, Fall 2015, you'll learn where to find the best fall color displays, discover where to look for wildlife, and read about a Smoky Mountain fall escape. Parks featured in this edition include:

• Great Smoky Mountains National Park
• Apostle Islands National Lakeshore
• Indiana Dunes National Lakeshore
• Pictured Rocks National Lakeshore
• Sleeping Bear Dunes National Lakeshore
• North Cascades National Park
• Rocky Mountain National Park
• Natchez Trace Parkway

Essential Park Guide Summer 2015

Where to head in the National Park System during the summer months? The choices, as you know, are many. In this Essential Park Guide, Summer 2015 we take you into the Rockies, down into the Atlantic Ocean, and even onto the John Muir Trail in the High Sierra. There's even an article on classic hikes in the National Park System.

Among the parks written about in this guide are:

• Biscayne National Park
• Grand Teton National Park
• Rocky Mountain National Park
• Mount Rainier National Park

Essential Park Guide Spring 2015

Springtime is a bit of an 'in-between'season. It's somewhere between the longer, warmer days of summer, and the cooler and muddier days of a late winter. Hopefully you'™ll find your place farther from winter's cold and closer to summer's breezes. But with the National Park System as your playground, seek the climate you desire this spring.

You can head to the high-country in the Western half of the country for some late-season corn skiing. Patrick Cone did just that for a ski trip to Great Basin National Park. Or saddle up with Kim O'Connell and explore Shenandoah National Park by horseback. There's also a guide to great parks to visit during the spring.

Park adventures covered in our Essential Park Guide, Spring 2015, include stops in these parks:

• Acadia National Park
• Bryce Canyon National Park
• Fredericksburg and Spotsylvania National Military Park
• Great Basin National Park
• Shenandoah National Park
• Zion National Park

Essential Guide to Paddling the Parks 2014

Paddling down a river or across a lake in a national park setting is truly a wonderful, memorable experience, one that carries thrills and life-long memories. You can retrace the historic 19th-century journey of John Wesley Powell, or land on a lodgepole pine-studded shore where camp is set under swaying trees and the evening brings a vivid sunset.

Veteran paddlers have their special spots in the park system; I cut my white-water teeth on the New River Gorge National River and love canoeing in Yellowstone National Park. The scenery on the Yampa River and Green Rivers in Dinosaur National Monument is also amazing and the rapids breath-drawing. Cape Cod National Seashore can be enjoyed via canoe or kayak, while the spectacular Channel Islands National Park is ideally explored by sea kayak.

Whether you choose the muddy Colorado through Cataract Canyon in Canyonlands National Park or through iconic Grand Canyon National Park, a breathtaking float down the Nizina River in Wrangell-St. Elias National Park, sea kayaking along Cape Lookout National Seashore, or a weeks-long excursion through Noatak National Preserve, you'll find great and endless options for paddling in the National Park System.

Essential Park Guide Winter 2014

Winter is the best season to look for Anhingas, and other wildlife, in Everglades National Park. But it’s also a great season to head to Point Reyes National Seashore in California to watch for the arrival of thousands of elephant seals for their breeding season, or to the Upper Delaware Scenic and Recreational River in New York and Pennsylvania to scan the skies for bald eagles.

The fact is, the winter months are a great time to find yourself in the National Park System, whether you’re in search of wildlife, a great hike, or to seek out some solitude.

In our winter guide to the parks, we offer articles that can help you choose your destination. There are road trips that will not only keep you free of snow and ice but also take you back in history.

And while many national park lodges close in winter, there are many other lodgings where you can call it a night, as we note on page 12. You can begin planning next year’s vacation by turning to page 28 to read about international park travel, to page 10 to consider renting a home inside Yosemite National Park for your getaway, or begin making plans for a trip this winter by scanning our list of both warm and sandy and cold and snowy destinations. The point is, there is no down season in the National Park System.

Young Explorer's Guide To Yellowstone

Heading to Yellowstone this year and looking for something to keep your kids occupied? Try the Traveler's Young Explorer's Guide To Yellowstone. This book helps youngsters understand how the nation's first national park protects our natural environment, wildlife, and geothermal features. From wolves to lakes to bears to geysers, this book will explain how all of the natural world is connected.